Electric Cargo Bikes: Used, Conversion Kits, or New—The Complete Guide for 2026

In summary:

• Most cargo bikes (two-wheeled cargo bikes, longtails, three-wheeled cargo bikes, and compact models) can be fitted with an electric conversion kit.
• Buying a used cargo bike and converting it to electric saves €2,000 to €4,000 compared to a new electric cargo bike.
• Cargo bikes refurbished by specialized workshops allow you to purchase a used electric cargo bike with a 1-year warranty.
• A 120 Nm torque-sensing mid-drive motor delivers more power than most factory-built electric cargo bikes.
• The process is reversible: the kit can be removed or transferred to another cargo bike.
• This guide reviews the models, compatible kits, prices, and feedback from individuals, families, and professionals in France.

Introduction

A cargo bike weighing 25 to 35 kg when empty, two children seated in the back, the week’s groceries in the basket, and a 6% grade on the way to school. This scenario is familiar to anyone who rides a cargo bike every day. Electric assist is no longer a luxury—it’s a necessity—and yet, a new electric cargo bike regularly costs between 4,000 and 7,000 €.

There is another option that’s more affordable and just as effective: choosing a used cargo bike or a standard bike and adding an electric conversion kit, also known as a bike electrification kit. Or you could buy a used electric cargo bike that has been refurbished by a specialized shop—an option that meets the needs of those looking for both quality and affordability.

This guide covers everything you need to know to ride an electric cargo bike in 2026 without breaking the bank. Which models to choose—new, used, or refurbished. Which kit to install and at what cost to transport children to school or handle your work commutes in the city. Bullitt, Yuba Kombi, Babboe, Douze Cycles, Omnium, Le Petit Porteur, and many others… every piece of advice is backed by technical data and feedback from individuals, families, and professionals in France who have taken the plunge.

The result: a high-performance electric cargo bike, tailored to your needs, for a fraction of the price of a new model. It features a powerful torque-sensing motor and the option to remove the kit if your needs change.

What is the electrification of a cargo bike?

Electrifying a used or new cargo bike involves adding a conversion kit (mid-drive motor, battery, and control system) to a manual or used cargo bike that doesn’t come equipped with one. The cargo bike retains its original frame, wheels, disc brakes, drivetrain, and design. It simply gains pedal assistance that transforms daily trips around town.

The principle is the same as for any bicycle, but the demands are greater. A cargo bike carries passengers, children, and equipment (sometimes with a payload capacity of 50, 80, or even 100 kilograms) in addition to the rider. The motor must provide sufficient torque to get this mass moving from a standstill, maintain a steady speed on hills, and ensure safety on every trip, even when fully loaded.

That’s why you can’t just use any kit to electrify a cargo bike. Rotation-sensor kits, which are often sufficient for a lightweight city bike, quickly reach their limits on a cargo bike in heavy use. The best solution is a torque-sensing mid-drive motor: it measures the force applied to the pedals and adjusts the assistance proportionally, providing a natural and progressive pedaling feel—ideal for riding safely, especially with children or passengers on board.

New Electric Cargo Bike vs. Used Electric Cargo Bike: Two Approaches, Two Budgets

An electric cargo bike purchased new has its motor and battery built in from the design stage. The design is seamless, the cables are integrated, and the whole unit is optimized. It’s the most turnkey solution, but also the most expensive: expect to pay between €4,000 and €7,000 for the most common models in France, and even more for high-end models.

Electrifying a used cargo bike—or one you already have in your garage—works on the opposite principle. You keep the cargo bike you already own and add a conversion kit to it. The cost is cut by half or even a third. The cargo bike remains the same, with the added benefit of electric assistance. And if your needs change over the years, the kit can be removed and transferred to another cargo bike.

There are some trade-offs: it doesn’t blend in as seamlessly as a factory-installed motor, and the installation requires a bit of technical know-how or a visit to a shop if you need help. But for a family that already owns a cargo bike, or when buying a used cargo bike, it’s often the most practical (and sustainable) choice.

Why choose a used electric cargo bike over a new one?

Electrifying an existing cargo bike isn’t a compromise. It’s a deliberate choice, driven by tangible benefits that more and more families and professionals in France are discovering.

Keep your cargo bike. You grow attached to a cargo van. You know how it handles, its dimensions, and its design. You’ve invested in accessories: cargo boxes, child seats, and rain covers. Going electric lets you keep all of that ecosystem without having to start from scratch.

Divide the price. A new, high-quality electric cargo bike costs between 4,000 and 7,000 €. A complete conversion kit, including the battery, costs between 1,070 and 1,150 € (price includes tax). Starting with a used cargo bike priced at €800 or €1,500, the savings are considerable. This is the best option and the best value for those looking to buy a used electric cargo bike without sacrificing performance.

Increase power. Entry-level and mid-range factory-built electric cargo bikes are equipped with motors delivering 40 to 80 Nm of torque. A kit like the PowerTrail Z8 delivers 120 Nm… A powerful torque-sensing motor that makes all the difference when pulling away on an incline, especially when you’re carrying cargo or taking kids to school.

Take advantage of a reversible solution. Unlike a factory-installed motor, an electrification kit can be removed. Whether you want to resell the cargo bike, transfer the kit to another bike, or go back to a pedal-powered cargo bike, it’s possible.

That is precisely what City Ride Magin its review of the PowerTrail Z8: “a reversible approach that lets you keep your existing bike rather than buying a new e-bike,” offering a “good balance between power, weight, modularity, and price.”

Make an eco-friendly and sustainable choice. Manufacturing a new electric cargo bike has a significant environmental cost. Electrifying an existing cargo bike extends its lifespan and avoids the need to manufacture a new frame, new wheels, and a new drivetrain. This is a concrete, eco-friendly choice that aligns with the philosophy of those who choose to bike for their daily commutes. It is also a form of the circular economy that more and more local repair shops and workshops are actively promoting.

To learn more about comparing new and used cargo bikes, check out our guide to new and used cargo bikes.

Buying a Used Cargo Bike and Converting It to Electric: The Calculation That Changes Everything

Buying a used electric cargo bike is one of the best decisions you can make to meet your mobility needs in 2026. And when you combine the purchase of a used cargo bike with a Syklo conversion kit, the result often outperforms a new electric cargo bike in terms of both performance AND cost (two to three times cheaper).

The used cargo vehicle market in France

Listings for used cargo bikes are on the rise in France. Specialized platforms like Rutile.bike and Upway, as well as classifieds sites like Le Bon Coin, regularly feature Bullitt, Yuba Kombi, Babboe, Douze Cycles, and Bakfiets models in good condition. Used pedal-powered models, which are less in demand than electric versions, are often available at very attractive prices in these listings.

Knowing how to read a used cargo bike listing is a skill in its own right. A good seller will specify the condition of the frame, brakes, tires, and drivetrain in their listing. Before responding to an ad to buy a used electric or pedal-powered cargo bike, always ask the essential questions: the reason for the sale, how it was used, its maintenance history, and any defects. A reputable seller won’t hesitate to provide detailed answers and show you the cargo bike.

Here is an overview of the prices listed in sales ads in France:

• Used Bullitt Classic: typically between €1,000 and €2,000 in classified ads
• Yuba Kombi Muscle: listed between €500 and €900
• Twelve G4s: between 1,200 and 2,000 € depending on their condition
• Used Babboe: between €600 and €1,200, depending on the model
• Bakfiets: between €500 and €1,500, depending on the model and condition

These cargo bikes are built to last: a well-maintained cargo bike will last for years. In listings from private sellers or professional dealers, you’ll also find used models in excellent condition, sometimes with very few kilometers on the odometer.

How to Test a Used Cargo Bike Before Buying It

Before buying a used cargo bike to convert it to electric, it’s important to test it in person. A test ride of just a few minutes is enough to make sure the cargo bike rides smoothly, the brakes respond well, the drivetrain doesn’t skip, and the tires are in good condition. Check that the tires aren’t too worn or cracked—they’ll need to support the extra weight of the battery and motor. If the tires are in poor condition, plan to replace them when installing the kit. Don’t hesitate to ask a professional for help!

Key Points to Check on a Used Cargo Ship

Before responding to an ad for a used cargo bike with the intention of converting it to electric, there are several things to check. The frame must be in good condition—that is, no cracks, no deep corrosion, and no visible deformation. The disc brakes must be in working order, and the brake pads must be in good condition. The drivetrain (chain, cassette, derailleur) may be worn but can be replaced easily and inexpensively. Check the condition of the tires and make sure the bottom bracket is BSA standard (between 68 and 73 mm) or press-fit BB86 or BB92. If in doubt, a local bike shop can inspect the cargo bike before purchase for a few dozen euros.

The Actual Price Calculation

Let’s take a concrete example: a used Yuba Kombi found in an ad for €700, electrified with a PowerTrail Z8 48V kit and a Hailong 720 Wh battery, for a kit cost of €1,150 (price including tax at Syklo). The total comes to around €1,850. In contrast, a new Yuba Kombi E5 costs about €3,000 (with a Shimano E5000 motor delivering only 40 Nm of torque)—three times less torque than the PowerTrail Z8, yet twice the price…

The difference is even more striking when compared to new, high-end electric cargo bikes, which cost between 5,000 and 7,000 €. Buying a used electric cargo bike and converting it with a Syklo kit gives you 120 Nm of torque for a total cost of €2,000 to €2,500. It’s the ideal way to meet your family or work transportation needs without breaking the bank.

Refurbished cargo bikes: the third way

Between buying a new cargo bike and buying a used, unrefurbished model found in a private ad, there is a third option that is becoming increasingly accessible in France: refurbished cargo bikes. Buying a used, refurbished electric cargo bike means getting the best of both worlds.

What is a refurbished cargo bike?

Refurbishing a cargo bike involves inspecting it thoroughly, replacing worn parts, servicing the brakes, tires, and drivetrain, and then testing it rigorously before offering it for sale. A refurbished cargo bike is not simply a used model put back on the market: it is a cargo bike that has undergone thorough technical work to ensure it meets the needs of its next owner under the safest possible conditions.

Workshops that refurbish cargo bikes most often work with high-end used models such as Bullitt, Babboe, Douze Cycles, and Yuba, which they refurbish to give them a second life. Refurbishing a high-quality cargo bike is often a smarter choice than buying a new entry-level model for the same price.

Warranty: The Key Benefit of Refurbished Cargo Bikes

One of the major advantages of a refurbished cargo bike compared to one purchased from a private seller is the warranty. Most shops and platforms that sell refurbished cargo bikes offer a 1-year warranty on parts and labor. This is an important safety net, especially if you plan to transport children or heavy loads on a daily basis.

Some refurbishers even offer a 1-year warranty on the entire cargo bike, in addition to the manufacturer’s warranty on the new components installed. To buy a used electric cargo bike with complete peace of mind, we strongly recommend looking for a seller who offers cargo bikes with a 1-year warranty.

Where can I find refurbished cargo bikes?

There are several options available:

• Specialized platforms such as Upway and Rutile.bike offer cargo bikes with a 1-year warranty and certified inspection. These platforms select high-quality used models, refurbish them, and offer them for sale with a comprehensive after-sales service.
• Local cargo bike specialty shops: Many bike repair shops in France have developed expertise in refurbishing cargo bikes. These local retailers offer cargo bikes at competitive prices, complete with a 1-year warranty.
• Cargo bike retailers: Some authorized retailers (Yuba, Bullitt, Babboe) purchase used cargo bikes, refurbish them, and list them in their catalogs. These refurbished models may be covered by a remaining manufacturer’s warranty.

Upgrading Your Cargo Bike with an Electric Kit: A Winning Combination

The final step is to combine the purchase of a cargo bike with the installation of a Syklo conversion kit. You buy a used, refurbished electric cargo bike—with a 1-year warranty and in excellent condition—and add a PowerTrail Z8 kit (with a 2-year warranty) to get 120 Nm of assistance. The result: a high-performance, reliable electric cargo bike for a total cost of less than €3,000.

Some cargo bike refurbishment centers even offer to refurbish the bike and install the electric kit in a single visit. This is an excellent option for those who don’t want to handle the installation themselves and want to buy a used, ready-to-ride electric cargo bike.

Beyond the price, refurbishing is also an eco-friendly choice: by extending the life of an existing cargo bike rather than buying a new one, you reduce your carbon footprint and support the local circular economy—which is perfectly in line with choosing a cargo bike for your daily commute.

Are all cargo bikes compatible with a conversion kit?

Compatibility criteria to check

The first point is the bottom bracket. This is the housing into which the crank axle fits, and it is also where a mid-drive motor is mounted. Most cargo bikes use a bottom bracket that meets the BSA (English thread) or JIS standard, which is directly compatible with common kits. Some recent models use specific standards (PF30, BB86, T47) that may require an adapter.

The second criterion is the bottom bracket center distance. A standard 68- or 73-mm bottom bracket fits directly. For larger sizes, you’ll need to check compatibility with the kit you’ve chosen. Syklo offers optional adapters for PressFit BB86 and BB92.

The third point concerns the available space around the crankset. On a front-cargo bike (with a front cargo box), the handlebar may limit the available space. On a longtail bike, the area is generally more open. It’s important to make sure the kit doesn’t interfere with foot movement or existing cables.

Also check the condition of the tires and brakes. Worn tires should be replaced during installation to ensure optimal safety. Disc brakes are recommended (and are usually already installed on modern cargo bikes).

Finally, the type of frame material matters. Both steel and aluminum are compatible with electrification. Carbon, on the other hand, is not recommended for this type of cargo bike: a carbon frame cannot withstand the mechanical stresses of a mid-drive motor. If your cargo bike has a carbon frame, it’s important to mention this when seeking advice.

Compatibility by Type of Cargo Bike

Cargo Bikes (Bullitt, Douze, Omnium, Babboe, Bakfiets, Le Petit Porteur) – A cargo bike is often the best choice. Many cargo bike models are available in a pedal-powered version, with a standard bottom bracket. The frame is designed to safely carry heavy loads, and the mid-drive motor is integrated into the center of the bike, which maintains the cargo bike’s stability.

Longtail cargo bikes (Yuba Kombi, Yuba Mundo, Tern GSD, Benno Bikes) — This type of cargo bike is generally very compatible. The reinforced rear rack provides a natural spot for mounting certain batteries. Longtails are ideal for transporting children to school on a cargo bike or adult passengers on long trips.

Cargo bikes (Christiania, Nihola, Triobike) – Electrifying this type of cargo bike is possible but sometimes requires modifications. The weight and rolling resistance of three wheels make the motor’s assistance all the more important, which means that a powerful motor with at least 100 Nm of torque is essential for this type of cargo bike.

Compact cargo bikes (Muli, Le Petit Porteur, Cago) — With a lighter and more maneuverable design, this type of cargo bike is well-suited for conversion. The choice between a 36V or 48V configuration depends on your needs and your daily commute.

What about Decathlon cargo bikes? Decathlon (B’Twin) cargo bike models use standard components and are often compatible with a conversion kit. Since Decathlon is the most popular seller of cargo bikes in France, this question comes up often. The answer is generally yes, but you’ll need to check the bottom bracket type on a case-by-case basis for each Decathlon model. Decathlon also regularly lists cargo bikes in its used bike listings on its Decathlon Occasions platform.

In short: if the cargo bike has a standard bottom bracket, a frame in good condition (steel or aluminum, not carbon), and enough space around the bottom bracket, it’s most likely compatible. If in doubt, a photo and the center-to-center distance measurement are all you need to get advice and confirm feasibility. Syklo goes a step further by providing printable, actual-size templates of the motors and batteries so you can check the available space based on your specific needs before purchasing the kit.

Which motor should you choose for an electric cargo bike?

This is the most frequently asked question and the most crucial answer. Choosing the right motor will determine the cargo bike’s riding comfort, child safety, range, and reliability for years to come.

Mid-drive motor vs. hub motor: Why the mid-drive motor is the better choice for a cargo bike

There are two main types of kits: in-wheel motors (front or rear) and mid-drive motors (mounted on the bottom bracket). For a cargo bike, the mid-drive motor is the only option that truly meets the needs.

First, weight distribution: a mid-drive motor maintains the cargo bike’s stability, which is essential for ensuring the safety of children and passengers. Next, available torque: a bottom-bracket motor utilizes the bike’s drivetrain (chain and sprockets), which multiplies power when starting and going uphill. Finally, the pedaling feel: a good bottom-bracket motor complements the rider’s pedaling motion rather than replacing it, offering superior riding comfort.

A wheel motor may be suitable for a lightweight city bike, but on a 30-kilogram cargo bike designed to carry cargo or passengers, it will be pushed beyond its limits, leading to overheating, premature wear, and an unnatural pushing sensation that compromises safety. To efficiently transport any load on a cargo bike, a mid-drive motor is the only reasonable choice.

Torque Sensor vs. Rotation Sensor

The torque sensor measures the pressure applied to the pedals and adjusts the assistance accordingly. The harder you press, the more the motor assists. The result is ideal for city riding: natural, smooth, and seamless… which is an absolute priority for the safety of children on board.

The rotation sensor simply detects whether the pedals are turning. The assistance is binary (on/off), which can be unsettling on a cargo bike in full operation, especially when starting off with children riding in the cargo bike’s rear seats. For this type of cargo bike, a torque sensor isn’t a luxury. It’s essential for comfort and safety.

That’s exactly what FrandroidIn his review of the PowerTrail Z8: “the progressive nature of the assistance and the kit’s potential to transform an existing bike,” with a “natural riding experience” at the heart of his verdict. The journalist emphasizes how well the torque sensor is suited for cargo bikes and heavy-duty use.

Which pair is best for everyday cargo biking?

Torque, measured in Newton-meters (Nm), determines the motor’s ability to get the cargo bike moving and keep it moving:

• 40 to 60 Nm: sufficient for a city bike or a lightly loaded cargo bike on flat terrain. This is the power level of entry-level factory-installed motors (Shimano E5000). Insufficient for carrying heavy loads or children uphill—and even on flat terrain, the assistance won’t be ideal.
• 60 to 85 Nm: suitable for a cargo bike with moderate use and occasional hills. This is the power level of Bosch Cargo Line or Shimano EP6/EP8 motors found in new mid-range and high-end electric cargo bikes.
• 100 to 120 Nm: optimal comfort on a cargo bike for everyday transport. Starting off on an incline with two children is no longer a problem. That’s the level of the PowerTrail Z8, and it’s what you need to keep your children safe in all circumstances.

Syklo kits designed for cargo bikes

For the vast majority of cargo bikes—whether used to transport children to school, make deliveries, or as utility cargo bikes—the 48V version is recommended. The 36V version is suitable for compact cargo bikes used in urban settings with moderate loads.

The RoadDrive 45 (rear-wheel motor, 40 Nm) is not recommended for a cargo bike. Its torque is insufficient to meet the needs of this type of bike.

Bicycle Transition describes the PowerTrail Z8 as “one of the highest-performing electrification kits on the market,” highlighting “the high power output on uphills” and “the quality of the batteries developed by Syklo.” This assessment is particularly relevant for loaded cargo bikes on hilly terrain. is not recommended for a cargo bike. Its torque is insufficient for this category.

What is the ideal battery and range for an electric cargo bike?

The battery is the second most important factor after the motor. Its capacity determines the range in kilometers, its size affects installation, and its weight adds to that of the cargo bike. Depending on your range needs, it’s important to consider these various factors.

Factors That Influence Autonomy

The total weight while in use is the most decisive factor. A cargo vehicle carrying 40 kg of groceries will consume significantly less fuel than one carrying two children, their backpacks, and a gym bag—a total of 70 to 80 kilograms.

The elevation change along the route makes a big difference. A daily commute through flat downtown areas consumes between 5 and 8 Wh per kilometer. As soon as the road slopes at more than 2 to 3%, energy consumption can rise to 12 or 15 Wh/km.

The level of assistance you choose can triple your battery consumption. Tire pressure also plays a significant role: properly inflated tires reduce rolling resistance and improve range. Check your tire pressure regularly, as this is one of the simplest and most effective maintenance tasks for a cargo bike.

Compatible Batteries and Estimated Run Time – PowerTrail Z8 48V

Wedge 480 Wh: a good compromise for most trips. On a cargo bike used for a variety of purposes, expect a range of 40 to 70 kilometers, which is sufficient for daily trips around town.

Hailong 720 Wh : the ideal choice so you never have to worry about range. Between 90 and 120 km in real-world conditions. Recommended for those who make multiple trips throughout the day or who drive long distances.

Compatible Batteries and Estimated Run Time – PowerTrail Z8 36V

Wedge 360 Wh: 40 to 60 km. Ideal for daily commutes in the city center. Hailong 540 Wh : 90 to 110 km for longer trips.

Helpful tip: With the Syklo firmware and the SW102 display, you can track your energy consumption in Wh/km in real time. After a few rides, every cyclist will know exactly how much range they have left. Some users achieve energy consumption that is 20% below average thanks to the fine-tuning options available.

Electric Cargo Bikes by Brand: Compatibility and Recommendations

This section provides an overview of the main brands and models of cargo bikes available in France. For each brand, it includes: the type of cargo bike, compatibility with a conversion kit, the recommended kit, and—when a bike has already been converted to electric for an actual customer—real-world feedback.

Two-door cars

Bullitt (Larry vs. Harry) – The Premier Danish Two-Wheeler

The Bullitt is one of the most popular cargo bikes in France and Europe. Designed in Denmark, this cargo bike stands out for its lightweight aluminum frame, distinctive design, low center of gravity, and modular platform with a wide range of accessories for child safety: cargo boxes, seats, and rain covers. The Bullitt is available in a pedal-powered version (Classic) and an electric version (eBullitt, with a Shimano motor). Bullitt owners benefit from a 5-year frame warranty—a strong selling point for this long-term investment. It’s an excellent cargo bike for both taking children to school and for professional use.

Compatibility: confirmed. BSA bottom bracket, oversized frame. A used Bullitt Classic is an excellent choice for converting to electric. If you’re looking to buy a used electric cargo bike of this caliber, Bullitt listings are the first place to check.

Recommended kit: PowerTrail Z8 48V with a 720 Wh Hailong battery.

Syklo Customer Review – A Bullitt Classic owner uses it every day to transport his children. The powerful 120 Nm motor has transformed his commutes: hill starts with a fully loaded bike are now effortless. Child safety, thanks to the torque sensor, sets it apart from Shimano’s factory motors, which range from 60 to 85 Nm.

→ In-depth article (coming soon): [Electrifying a Bullitt: Motor Kit, Compatibility, and Cost]

Twelve Cycles – The French cargo bike, designed and assembled in France

Douze Cycles is one of the few major French brands specializing in cargo bikes. The G4 is a durable and sturdy steel cargo bike designed for everyday family or professional use, with a maximum load capacity of 200 kilograms. Owners of a Douze Cycles bike are eligible for a 5-year warranty on the frame—a testament to the manufacturer’s confidence in its product. Steel is one of the most durable materials, unlike carbon fiber, which is not recommended for this type of electrification.

Compatibility: confirmed. The steel frame provides an excellent foundation for electrification—steel absorbs vibrations and ensures optimal durability.

Recommended kit: PowerTrail Z8 48V with a high-capacity battery to meet professional transportation needs.

Syklo Customer Feedback – A customer uses his electrified Douze G4 for daily professional work: transporting heavy loads and equipment. The kit’s reliability over the years and the torque available at startup are the two features he appreciates most.

→ In-depth article (coming soon): [Electrifying a Douze Cycles: French two-wheeled cargo bike, motor kit, and compatibility]

Omnium – The cargo bike for couriers and urban utility use

The Omnium is a minimalist, fast, and agile Danish cargo bike. Highly popular among bike couriers and delivery professionals, the Omnium comes in several models sold almost exclusively as pedal-powered bikes, making it an ideal candidate for electrification. To find an Omnium, check online classifieds or visit specialty retailers that carry cargo bikes.

Compatibility: compatible. Standard bottom bracket shell, sturdy construction.

Recommended kit: PowerTrail Z8 48V – The 120 Nm of torque is perfect for frequent acceleration and for carrying loads in urban areas.

→ Detailed article (coming soon): [Electrifying an Omnium: Motor Kit for Courier Cargo Bikes and Urban Use]

CleanriderIn fact , Frandroid conducted its test of the PowerTrail Z8 specifically on a cargo bike of this type, describing it as “a powerful, lightweight, and reversible electrification solution, particularly well-suited for cargo bikes,” with “very good motor responsiveness” and “natural torque sensor behavior.”

Bakfiets – The Historic Dutch Cargo Bike

Bakfiets is a pioneer in cargo bikes in the Netherlands. Its models are recognizable by their large wooden cargo box, sturdy steel frame, and legendary durability. Many Bakfiets bikes are pedal-powered, and used models can be found in classified ads at affordable prices, making them good candidates for electrification. Retailers that sell cargo bikes often have Bakfiets models in stock.

Compatibility: generally good. It is recommended to check older models on a case-by-case basis.

Recommended kit: PowerTrail Z8 48V with a 720 Wh Hailong battery, given the heavy weight of the cargo bike and its cargo box.

Electric longtails

Longtail cargo bikes – electric longtails

The longtail is a type of cargo bike characterized by its elongated rear rack. This type of cargo bike is particularly well-suited for transporting children to school, running errands, and daily commutes. A well-chosen electric longtail cargo bike can replace the family car for the vast majority of trips. Listings for used longtail cargo bikes are on the rise in France… This is a category to watch closely.

The Petit Porteur – The compact French cargo bike for the city

The Petit Porteur is a compact cargo bike designed and manufactured in France. With its 20-inch wheels, modular front rack, and compact size, it’s perfect for weaving through city streets. The brand offers a “do-it-yourself electrification” version. Aftermarket electrification is part of the product’s original concept. In fact, Syklo is officially recommended by Le Petit Porteur on their website as the go-to electrification solution for their longtail bike—a rare endorsement in the industry. A selection of accessories (pet seat, standard rack, compact rack) rounds out the offering.

Compatibility: confirmed.

Recommended kit: PowerTrail Z8 36V for daily urban commuting (ideal for flat city centers) or PowerTrail Z8 48V for use with heavy loads or on hills.

Syklo Customer Review – A customer converted his Petit Porteur to electric power for his daily commutes in the city. The compact design, combined with the kit’s power assistance, offers remarkable maneuverability. Slight inclines, accelerating from stoplights, and small hills are handled effortlessly.

→ In-depth article (coming soon): [Electrifying a Small Cargo Bike: Mid-Drive Motor Kit and User Experience]

Yuba Kombi – The Most Affordable Family Longtail

The Yuba Kombi is one of the best-selling longtail bikes in the world. It features a Chromoly steel frame, 24-inch wheels, and a weight capacity of 200 kilograms. This bike is ideal for families: it can accommodate two children in cargo bike seats at the rear with the appropriate accessories (footrests, safety rails, cushions). The muscle-powered Kombi is priced at around €1,000 (the most affordable price on the market). Yuba offers a 5-year warranty on the Kombi’s frame, which is a great reason to buy it.

The Kombi E5, the factory-built electric version, is equipped with a Shimano E5000 motor producing just 40 Nm of torque, which is often considered insufficient for carrying cargo or children on a cargo bike over hilly terrain.

Compatibility: confirmed. One of the easiest cargo bikes to convert to electric. This longtail cargo bike is a benchmark for aftermarket electrification.

Recommended kit: PowerTrail Z8 48V with a 720 Wh Hailong battery. Three times more torque than the Kombi E5’s motor and the best value for families.

Syklo Customer Testimonial – A customer from the Basque Country uses his electric Yuba Kombi to take his children to school every day. The region’s hilly terrain made the trips very difficult to manage with just muscle power. With the kit, the pedal assistance feels natural and powerful, and the 40- to 60-kilometer range is perfectly suited to daily needs.

→ In-depth article (coming soon): [Electrifying a Yuba Kombi: Motor Kit, Range, and Customer Feedback]

Yuba Mundo – The full-size longtail bike for large families

The Yuba Mundo is the largest model in the Yuba lineup. A true XXL longtail cargo bike, it can carry up to three children and has a load capacity of 250 kilograms. Available in both pedal-powered and electric versions.

Compatibility: Good with the high-performance version. Recommended kit: PowerTrail Z8 48V with Hailong 720 Wh battery.

Tern GSD – The Premium Compact Longtail

The Tern GSD is a very popular compact longtail cargo bike, sold exclusively as an electric model with a Bosch motor. Electrification using a third-party kit is primarily intended for replacing a factory motor that has reached the end of its service life. This electric cargo bike features a striking design and can be stored upright, making it ideal for tight spaces in the city center.

Bosch HS Motor on Your Tern GSD? Save My eBike has the solution.

The Tern GSD is sold exclusively with a Bosch motor. When that motor reaches the end of its life, official solutions are few and far between—and expensive—if they even exist at all.

Save My eBike adapters, manufactured in France by Botch Cargo Bikes (Toulouse), allow you to remove the faulty proprietary motor and install a standard bottom bracket in its place—one that is compatible with Syklo pedal motor kits.

✅ Frame saved — no need to replace a bike that’s still in perfect condition

💰 Cost-effective — 2 to 3 times cheaper than replacing a proprietary motor

🔧 Repairable kit — Syklo proprietary software, French customer service, no planned obsolescence

🇫🇷 Made in France — steel adapter designed and manufactured in Toulouse

View Save My eBike adapters →

Compatible with Shimano EP8 / E8000 / E6100 / E6000 · Brose · Recommended for installation at a bike shop

Other longtail cargo bikes available in France

Benno Bikes and Xtracycle offer high-quality longtail bikes, which can be found in used bike listings. The muscle-powered models are generally compatible with conversion kits. Brands like Brumaire and Gaya also offer affordable electric longtail cargo bikes, with warranties that vary depending on the seller.

Babboe – The Dutch cargo bike for the whole family

Babboe is one of the best-known cargo bike brands in Europe, particularly among families with children. Babboe cargo bikes stand out for their large wooden or plastic cargo box, as well as their stability and sturdiness. Babboe offers several models (Babboe City, Babboe Curve, Babboe Slim) designed to meet different needs. The brand offers factory-equipped electric versions, but Babboe’s non-electric models can be easily refurbished and are frequently found for sale secondhand at affordable prices.

Babboe cargo bikes often come with a 5-year frame warranty, which provides peace of mind regarding the longevity of your investment. If you’re looking to buy a used or refurbished electric Babboe cargo bike, Babboe is one of the first brands to check in classified ads. Professional sellers offering cargo bikes often have Babboe models in stock.

Compatibility: generally good. Verification recommended according to the exact Babboe model.

Recommended kit: PowerTrail Z8 48V with a 720 Wh Hailong battery—the weight of the Babboe cargo bike and its cargo box makes the 48V version the right choice to ensure comfort in all situations.

Electric cargo bikes

Christiania Bikes, Nihola, Triobike

Danish cargo bikes are in a class of their own. Their stability when stationary and their large carrying capacity make them popular with large families and professionals (delivery drivers, street vendors). This type of three-wheeled cargo bike offers maximum safety for children, especially very young children.

Electrifying a three-wheeled cargo bike is possible but requires special attention. The bike is heavier, and the rolling resistance of three wheels is greater. A powerful motor with at least 100 Nm of torque is essential to ensure comfort and safety.

Recommended kit (if compatible): PowerTrail Z8 48V. Case-by-case verification and personalized advice are recommended.

Compact cargo ships

Muli Cycles, Cago

Compact cargo bikes are a rapidly growing category. They’re lighter, more maneuverable, and perfect for the city. Muli Cycles offers a compact cargo bike that folds up (ideal for tight spaces). Cago offers compact cargo bikes designed with safety and comfort in mind.

Compatibility: Check on a case-by-case basis depending on the model. Recommended kit if compatible: PowerTrail Z8 36V for light urban use; 48V for carrying loads or tackling hills.

La Poste Mail Carrier Bikes – Repurposed French Utility Bikes

La Poste has gradually modernized its fleet by replacing its iconic yellow bicycles with electric models. Thousands of mail carrier bikes (mainly Peugeot and MBK utility models) are now available on the used market, often for as little as €100 to €300. These sturdy bikes, designed for daily mail delivery, feature solid steel frames and reinforced front and rear racks. They’re the perfect foundation for a low-budget electrification project.

These aren’t cargo bikes in the strict sense, but they share several key features with that category: a compatible steel frame, a standard BSA bottom bracket, and racks designed to handle repeated loads. They are often in much better condition than typical used bikes that have been maintained for daily professional use and regularly serviced.

The Peugeot VU20 and its variants are the most common models in classified ads. They can also be found at flea markets, municipal equipment auctions, and on Le Bon Coin at very low prices. For someone who wants to try out an electric vehicle at a low cost before investing in a larger cargo van, it’s a great entry-level option that’s hard to beat financially.

Compatibility: generally good. Standard BSA bottom bracket on the vast majority of models. It is recommended to check on a case-by-case basis depending on the year and exact model.

Recommended kit: PowerTrail Z8 36V for light to moderate urban use. The 48V version remains an option if you want to increase your carrying capacity or ride on significant inclines.

The Stages of Electrification: From Assessment to First Run

Electrifying a cargo bike isn’t a project you can wing, but it’s not just for professional mechanics either. Here are the steps to follow to ensure your electrification project goes as smoothly as possible.

1. Check the cargo bike’s compatibility. Identify the type and width of the bottom bracket shell, make sure the frame is in good condition, and measure the available space. If you’re unsure, send a photo to the Syklo team for quick advice.

2. Choose your cargo bike and the right kit. If you already own a cargo bike or have purchased one secondhand, the PowerTrail Z8 is the place to start. The choice between 36V and 48V depends on the type of cargo bike and your needs. The choice of battery depends on the desired range and the available space.

3. Order and prepare for installation. The kit comes complete with: motor, battery, charger, SW102 display, wiring, hardware, cranks, and a special wrench. Shipping is free in mainland France. You’ll need the following additional tools: Allen wrenches, crank puller, bottom bracket wrench, screwdriver, threadlocker, and zip ties. Also, check the condition of your tires and brake pads before you begin.

4. Install the kit. Remove the original cranks and bottom bracket, install the motor in their place, mount the battery, and connect the display and wiring. Detailed tutorials are included with each kit. Estimated time: 2 to 4 hours for a first-time installation.

5. Configure and test. The Syklo firmware allows you to fine-tune the assistance settings via the SykloConnect app: torque level by mode, maximum speed, and response curve. The SW102 display shows speed, remaining range, and power consumption in real time. An initial test with no load, followed by tests with progressively heavier loads, allows you to verify the settings before transporting children or passengers.

6. Drive. The first few rides require special attention. Do not place your feet on the pedals when starting out (for 1 to 2 seconds) to allow the torque sensor to initialize. After a few rides, the assistance becomes completely intuitive.

For those who prefer to have a professional handle the installation, Syklo works with a network of partner repair shops in France. The team can direct each customer to the nearest repair center or shop. Maintenance of the kit is minimal: no regular engine tune-ups, just a check of the tightness of the bolts, the condition of the tires, and the battery.

Regulations, Standards, and Safety

Electrifying a bicycle is legal in France and throughout Europe, provided that specific rules are followed to ensure everyone’s safety.

The three requirements for driving legally on the road

The motor must not exceed a rated power of 250W. The motor assistance must automatically shut off when the speed exceeds 25 km/h. And the motor must operate only when the rider is pedaling. These rules are defined by the European directive and incorporated into the French Highway Code. A cargo bike that complies with these rules is considered an e-bike: no registration, no license required, and access to bike lanes.

The EN 15194 standard

This is the European standard governing electric bicycles. It defines safety and performance criteria. A compliant kit guarantees legal compliance and ensures that the safety of children on board is maintained under all circumstances.

Insurance and Liability

Under current law, electric cargo bikes are covered by the liability insurance included in home insurance policies. It is recommended that you check this with your insurer and opt for specific bicycle insurance, especially for a cargo bike whose value (bike + kit) may exceed €2,000. Some local insurers offer plans tailored to electric cargo bikes.

What if we push the limits?

Technically, the Display Expert allows you to adjust the maximum assist speed. If this limit is exceeded, the cargo bike is no longer considered an e-bike under the law. The 24-month Syklo warranty is void in the event of use outside the legal framework.

Budget and Financial Assistance for 2026

How much does it cost to buy your electric cargo bike?

The budget depends on your starting point and your needs:

Option 1: Electrify a cargo bike you already own. The cost is limited to the PowerTrail Z8 kit and the battery, which ranges from 1,070 to 1,150 € depending on the configuration. Even with workshop installation (€100 to €200), the total remains under €1,200. This is the best option to meet your electrification needs on the tightest budget.

Option 2: Buy a used cargo bike and convert it to electric. Buying a used Yuba Kombi for €700 from a classified ad + a PowerTrail Z8 48V kit for €1,070 = approximately €1,770. Buying a used Bullitt Classic for €1,500 plus the kit = approximately €2,570 to €2,650. To buy a used electric cargo bike in good condition, check out specialized classifieds and refurbished bike platforms.

Option 3: Buy a new pedal-powered cargo bike and convert it to electric. Purchasing a new Yuba Kombi (€1,000) + kit = approximately €2,070. Significantly less than a Kombi E5 at €3,000, with three times the torque, and the option of a 5-year warranty on the Yuba frame.

Option 4: Buy a refurbished cargo bike and convert it to an electric bike. Purchasing a cargo bike with a 1-year warranty and a Syklo kit gives you access to a reliable used electric cargo bike for €2,000 to €2,500. This is the best option for buying a used electric cargo bike with the peace of mind that comes with a 1-year warranty.

By comparison: a new, high-quality electric cargo bike costs between 4,000 and 7,000 €, with motors typically delivering between 40 and 85 Nm—which is significantly less than the PowerTrail Z8, which delivers 120 Nm.

Financial Assistance in France in 2026

National incentives (the “Bonus Vélo” and “Prime à la Conversion”) ended in February 2026. However, many regions, metropolitan areas, and municipalities continue to offer subsidies for the purchase of bicycles and conversion kits. These local subsidies vary by region from €100 to €600, depending on the program. It is recommended that you check your local government’s website before placing an order.

Some local incentive programs explicitly cover electrification kits, while others apply only to the purchase of new electric bikes. It’s worth checking the specifics on a case-by-case basis in your area. A local mobility center or a partner bike shop can advise you on the incentives available in your area.

There are also specific grants available for professionals who want to convert their utility cargo bikes to electric power. Find out more and check with your chamber of commerce or a local mobility advisor to see what grants you may be eligible for.

Testimonials and Feedback from France

Technical data and comparisons are helpful, but nothing beats the real-world experience of families and professionals who have chosen to electrify their cargo bikes. Here is some feedback from customers in France who have installed a Syklo PowerTrail Z8 kit.

Bullitt Classic – Getting Your Kids to School Safely

Bike: Bullitt Classic (Larry vs Harry) – Kit: PowerTrail Z8 48V | Battery: Hailong 720 Wh – Used for: transporting children on a cargo bike, daily commutes in the city

This parent uses their Bullitt for daily trips with their children. Before the bike was electrified, climbing hills and pulling away with a full load required considerable effort. The powerful 120 Nm motor has changed everything: smooth starts even on hills, natural assistance, and enough range to ride for several days without recharging. Child safety is ensured by the torque sensor, which provides gentle and progressive assistance.

“Here are a few photos of my homemade cargo bike built with the PowerTrail Z8 kit, which works like a charm even when the bike is heavily loaded. Thank you” — Xavier

Yuba Kombi – Electric longtail cargo bike in the Basque Country

Bicycle: Yuba Kombi – Kit: PowerTrail Z8 48V | Battery: Hailong 720 Wh – Used for: transporting children on a cargo bike, school, daily commutes

The Basque Country’s hilly terrain isn’t easy on a longtail cargo bike loaded with two children. This customer discovered a new way to ride after switching to an electric bike: school runs have become a pleasure again. The 40- to 60-kilometer range more than covers the daily routine. Child safety is ensured thanks to the torque sensor, which adjusts the assistance to each situation.

“Looking to electrify my muscle-powered cargo bike so I could carry everything I need in my daily life without a car, I came across the motor kit at Syklo. At first, I didn’t think I was skilled enough to install it myself, but in the end, with all the great advice and technical support from Yanni at Syklo, the installation was pretty simple and very straightforward. So here I am with an electric cargo bike that’s already making my daily life so much easier!” — Irenaeus

Douze G4 – Professional Cargo Bike for Everyday Use

Bicycle: Douze Cycles G4 – Kit: PowerTrail Z8 48V – Used for: professional transportation, carrying heavy loads

This French cargo bike is used as a professional utility bike. The customer needs to transport equipment and heavy loads every day. The kit’s reliability over the years, the high torque for starting from a stop under full load, and the Syklo firmware—which adjusts the assistance level based on the day’s cargo—are the features most appreciated.

“Responsive team, careful shipping. Well-made equipment! I’m satisfied with how it was installed on a new cargo ship. Perfect!” — Stephan

Le Petit Porteur – Everyday Urban Mobility in the City Center

Bicycle: Le Petit Porteur Original – Kit: PowerTrail Z8 – Used for: urban commuting

The compact design of this French cargo bike, combined with the kit’s power assistance, offers ideal maneuverability in the city center. Slightly uphill stretches, accelerating from traffic lights, and small climbs are handled effortlessly. This riding comfort perfectly meets the needs of everyday urban mobility.

“Installed on a Le Petit Porteur Longtail bike. Everything went smoothly; you’ll need an extension cable for the battery. The motor works well, and level 2 assistance is enough for me. Syklo’s customer support was also excellent, answering every one of my questions.” — Romain

La Poste Mail Carrier Bike – For Everyday Utility Use in the City

Bicycle: La Poste utility bike (steel frame, front and rear racks) – Kit: PowerTrail Z8 | Battery: Hailong – Used for: daily utility trips around town

Jérôme converted his old mail carrier bike into an e-bike using a Syklo kit. The iconic yellow steel frame, the reinforced rear rack holding a wooden crate, and the front pannier… This sturdy utility bike has been transformed into a high-performance e-bike for his daily commute. The Hailong battery is mounted on the down tube, and the mid-drive motor is integrated into the standard BSA bottom bracket: a clean installation on a bike built to last. “A great motor that does the job very well. Syklo was very professional and responsive; I recommend them without hesitation.” — Jérôme

FAQ

Can all cargo bikes be electrified? The vast majority are compatible, provided the bottom bracket is BSA or JIS standard and the frame is in good condition (steel or aluminum, not carbon). If in doubt, a photo is all it takes to get advice and confirm compatibility.

Which motor should I choose to meet my needs on a cargo bike? A torque-sensing mid-drive motor is ideal and essential. The recommended minimum torque is 80 Nm for light use, and 100 to 120 Nm for transporting children on a cargo bike or heavy loads on a daily basis. The PowerTrail Z8 (120 Nm) is the go-to kit for meeting the needs of the vast majority of cargo bikes.

How much does it cost to convert a cargo bike to electric? The complete kit costs between 1,070 and 1,150 €. If you start with a used cargo bike or a refurbished model, the total cost ranges from €1,800 to €2,500—which is 2 to 3 times cheaper than a new electric cargo bike. To buy a used, refurbished electric cargo bike and convert it to electric, expect to spend between €2,000 and €2,500.

Is it legal to motorize a cargo bike in France? Yes, provided that the motor has a rated power of no more than 250W, that the motor assistance cuts off at 25 km/h, and that the motor operates only when pedaling. A compliant kit allows you to ride legally on the road and use bike paths.

What is the range of an electric cargo vehicle? Range depends on the battery, the weight being carried, the elevation gain, and the level of assistance. With the Hailong 720 Wh battery on a cargo bike under normal use, you can expect a range of between 90 and 130 kilometers. With the Wedge 480 Wh battery, the range is between 40 and 70 km. This is sufficient to meet the needs of most daily trips.

Is the installation reversible? Yes. The kit can be removed to restore the bike to a standard cargo bike, or transferred to another cargo bike. This is one of the major advantages over buying a new electric cargo bike.

Can you install the kit yourself? Yes, with the right tools and by following the provided tutorials. Allow 2 to 4 hours for your first installation. Our tip: Check your tires and brakes before you begin. Syklo partner shops in France are available to assist those who prefer to have the work done by a professional.

What is the warranty on the Syklo kit? The kit is covered by a 24-month warranty from the date of purchase, provided it is used in accordance with legal regulations. For the cargo bike itself, check with the seller or manufacturer. Some manufacturers (Yuba, Bullitt, Babboe, Douze Cycles) offer a 5-year warranty on the frame. For refurbished cargo bikes, a 1-year warranty is generally included.

Does the kit require any maintenance? Maintenance is minimal. There are no regular engine tune-ups; just periodic checks of tightness, tire condition, and the battery. The cargo bike’s disc brakes must be kept in good condition. A local bike shop or repair center can help you with regular maintenance.

Can adult passengers be transported on an electric cargo ship? Yes, on models designed for this purpose (longtail cargo bikes with a passenger seat, cargo bikes with a bench seat). The PowerTrail Z8, with its 120 Nm of torque, is perfectly suited for transporting cargo and adult passengers on a daily basis.

What financial assistance is available for purchasing an electric cargo bike? National subsidies ended in 2026, but many regions and local governments continue to offer subsidies for the purchase of bicycles and electrification kits. Check with your local government or a mobility advisor at your city center to find out what subsidies are available in your area.

How can I find a used cargo bike to convert to electric? Check listings on specialized platforms (Rutile.bike, Upway) and classifieds sites like Le Bon Coin. Look for listings from sellers offering high-end used models (Bullitt, Yuba Kombi, Babboe, Douze Cycles) in good condition. To buy a used electric cargo bike with a warranty, choose platforms that offer cargo bikes with a 1-year warranty.