Electrifying a Yuba Kombi: Motor Kit, Range, and Customer Feedback (2026)

• The Yuba Kombi in the “muscle” version is fully compatible with a crankset motor kit featuring a torque sensor.
• With 120 Nm of torque, the PowerTrail Z8 delivers three times as much power as the Shimano E5000 in the factory E5 model (40 Nm).
• A customer in the Basque Country uses this setup every day to take his children to school—a detailed account of his experience is provided below.
• Starting with a used bike, the cost of electrification comes to less than €2,500, including a 120 Nm motor kit.

Introduction

The Yuba Kombi is one of the best-selling longtail cargo bikes in the world, and for good reason: it offers impressive carrying capacity in a compact, accessible design, at a starting price that’s among the lowest on the market. In its pedal-powered version, this bike costs around €1,000—much less than most electric cargo bikes available in stores.

But this accessibility comes at a cost. A longtail bike loaded with two children, their backpacks, and a bag of groceries can easily weigh 70 to 80 kg. Without assistance, rides on hilly terrain become an intense physical workout—an effort that is unsustainable over several years. And the E5 model, the factory-built electric version with its 40 Nm Shimano E5000 motor, is often considered underpowered for real-world cargo use.

Electrifying this cargo bike with a high-torque kit is an option worth considering closely. The math is simple, and user reviews speak for themselves. This guide details every step, from choosing the kit to your first ride around town.

The ultimate family longtail cargo bike

This bike is the compact model in the Yuba lineup. Its Chromoly steel frame makes it sturdy enough for even the most demanding daily commutes—a level of durability that few similar bikes can match in this price range. Chromoly steel also offers better shock absorption than aluminum—a real advantage for riding comfortably with children on the back, year after year, without worrying about wear and tear.

This cargo bike is designed to carry a maximum load of 200 kg (including the rider), making it one of the sturdiest longtails in its class. It features 24-inch wheels, slightly smaller than the standard 26-inch size, which lowers the center of gravity and makes it easier to straddle—a benefit for easily mounting the bike, even when fully loaded. It comes in one size and is suitable for riders ranging from 1m50 to 2m in height, thanks to an adjustable stem and a 500 mm seatpost. This versatility makes this cargo bike suitable for all family members, regardless of their size.

Yuba’s accessory ecosystem is one of the most extensive on the market. Among the options available in stores or on the Yuba website are: footrests (Boda Foot Pegs), grip bars and handrails (Monkey Bars or Hold On Bars), seat cushions, a front basket (Bread Basket), a rain cover (Pop Top), a cargo deck (Utility Deck), and a passenger seat. This bike can carry two children to school, an adult passenger, or a bulky load in the back—creating your own ideal cargo bike is all about choosing the right accessories and configurations.

The drivetrain features a 9-speed Shimano Altus derailleur, and braking is provided by hydraulic disc brakes. The entire system is reliable and designed for heavy daily use over several years, requiring no special maintenance beyond routine servicing.

The different versions available: the pedal-powered cargo bike (around €1,000—the most affordable entry-level model in the lineup), the E5 model with a Shimano Steps E5000 motor and a 418 Wh battery (around €3,000), and the E6 model with a newer motor. All these bikes are available at Yuba dealers in France and on the official website. To explore the different configurations, visit the website, which features a helpful configurator. Dealers in the network also offer test rides—the best way to experience this bike before purchasing your cargo bike.

Can this cargo bike be converted to electric?

Yes, and it’s one of the easiest longtail bikes to convert into an e-bike. This Yuba Kombi is an ideal candidate for adding electric assist using a torque-sensor motor kit.

The bottom bracket is BSA-standard and is directly compatible without any modifications to the frame. It is the most common standard—no adapter or special parts are needed.

The Chromoly steel frame is oversized. Designed to carry a load of 200 kg, this bike easily withstands the stresses of a mid-drive motor. Steel offers the best durability for this application—a material choice that makes all the difference in the long run.

The area around the crankset is clear. The design of this cargo bike, with its low frame and simple geometry, leaves plenty of room for the kit and cable routing.

The reinforced bar on the rear rack provides a natural mounting point for certain battery sizes—an additional option compared to bikes that only offer a mounting point on the frame tube. This cargo bike thus offers significant flexibility for integrating the kit.

Syklo has already documented the electrification of this model on its website. The process is proven, and its compatibility has been confirmed under real-world conditions for several years.

Which kit should I use to convert this bike to an electric bike?

The recommended kit is the PowerTrail Z8 48V.

This longtail cargo bike is designed to carry heavy loads. Choosing a high-torque kit isn’t a luxury—it’s the best option for fully utilizing this bike’s capabilities. With 120 Nm of torque, the PowerTrail Z8 offers plenty of power for any situation: pulling away uphill with a full load, accelerating through city traffic, and riding on slight inclines while carrying cargo.

Why a torque sensor is essential on a loaded longtail cargo bike

On a longtail bike, the weight is concentrated at the rear of the bike. When starting out, there is significant inertia. A rotation sensor would trigger the assistance in a binary manner, which could create a jolt that destabilizes the bike—especially with children in the back. The torque sensor adjusts the assistance proportionally to the pressure applied to the pedals: the start is smooth and controlled. This is the best technology for safely using a loaded cargo bike on a daily basis.

Recommended battery: Hailong 720 Wh

For everyday family use on hilly terrain, this is the option that offers the most peace of mind. With an estimated range of 50 to 80 km on a single charge, you can ride for several days without recharging. The Wedge 480 Wh is an affordable option for short trips on flat terrain—it’s less expensive but still fully functional for an urban cargo e-bike.

Recommended full configuration:

• Motor kit: PowerTrail Z8 (TSDZ8, 120 Nm, torque sensor)
• Battery: Hailong 720 Wh (48V)
• Display: SW102 (IP65 waterproof)
• App: SykloConnect
• Firmware: Open Source (OSF)

Installation: What You Need to Know

Installing the kit on this cargo bike is one of the easiest among longtail bikes. The frame is simple, the bottom bracket is standard, and there’s plenty of working space. You don’t need to be a professional mechanic—a motivated DIYer can complete the installation by following the guide included with the kit.

Removing the original crankset. Remove the cranks using a puller, then unscrew the BSA bottom bracket shell. On this bike, the process is straightforward and presents no particular difficulty.

Assembling the kit. Insert the TSDZ8, tighten the mounting nut with threadlocker, and install the new cranks provided. The bike will have its pedals back in just a few minutes.

Securing the battery. The Hailong 720 Wh mounts to the down tube of the frame. This cargo bike also allows you to use the rear rack bar if you prefer to keep the frame clear—a nice option for a clean, unobtrusive setup.

Wiring. The wiring runs along the frame, following the down tube, to the SW102 display mounted on the handlebars. The brake sensors connect to the disc brake levers.

Transmission compatibility. The kit is compatible with the original Shimano Altus 9-speed drivetrain. No changes to the cassette or derailleur are necessary. The original chain can be kept if it is in good condition—replace it with a reinforced e-bike chain if the bike has already been ridden extensively.

Estimated installation time: 2 to 3 hours. A workshop in the Syklo network can also handle the entire installation. Send an email to the team to get the address of the nearest partner workshop—the network covers major cities throughout France.

Once installed, the TSDZ8 is unobtrusive. This cargo bike retains its longtail look—the electric conversion doesn’t alter the bike’s character. Many passersby don’t even notice that the bike is electric.

Case Study: An Electric Yuba Kombi in the Basque Country

This customer from the Basque Country uses his Yuba cargo bike every day for family trips—mainly the round trip to school with his children. The Basque Country isn’t the easiest terrain for a longtail bike: there are frequent, sometimes steep, hills, and the routes combine flat sections in town with sustained climbs. It’s a demanding use case that puts any electric cargo bike to the test.

Before electrification, these trips had become a real physical challenge. A bike loaded with two children easily weighs 60 to 70 kg, and the 5- or 6%-grade hills turned every trip into a workout—not the best way to motivate yourself to ride every morning.

Installing the PowerTrail Z8 48V with the Hailong 720 Wh battery has completely transformed the riding experience. The 120 Nm of torque makes hills a breeze: starting on an incline is smooth, and the assistance adjusts naturally to the rhythm of your pedaling. This electric cargo bike has once again become a pleasure to ride every day, rather than a chore.

The range observed under real-world conditions—with the hilly terrain of the Basque Country and a family load—is between 40 and 60 km per charge. This is more than sufficient for daily commutes, and the SW102 display allows you to monitor power consumption in real time to adjust the level of assistance as needed. After a year of use, the customer can no longer imagine riding without assistance. This electric cargo bike has become the family’s primary bike—it has replaced the second car for all daily trips under 15 kilometers.

“Looking to electrify my pedal-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

Syklo Electric Yuba Kombi vs. Factory E5 Model: A Comparison

The E5 model is the factory-equipped electric version of this cargo bike. It features a Shimano Steps E5000 motor and a 418 Wh battery. How does it compare to a pedal-assisted bike equipped with the Syklo kit? Here are the specs, so every cyclist can form their own opinion and choose the option that best suits them.

The couple. The Shimano E5000 in the E5 model delivers 40 Nm of torque. The PowerTrail Z8 delivers 120 Nm—three times as much. On a loaded longtail cargo bike, this difference is crucial. Where the E5000 struggles on hills, the TSDZ8 maintains constant and powerful assistance. That’s this kit’s greatest strength.

The price. The E5 model costs about 3,000 €. A Yuba Kombi pedal bike (about 1,000 €) equipped with the PowerTrail Z8 48V electric kit costs about 2,200 to 2,800 € in total. The savings are real—and the cargo bike equipped this way offers a more powerful kit. For those who already own this bike, the cost is limited to the kit, starting at €1,200. It’s the most affordable way to get a high-performance longtail electric cargo bike.

Autonomy. The E5 model has a 418 Wh battery. The Hailong 720 Wh offers 72% more capacity. Yuba claims a range of approximately 84 km under optimal conditions for the E5—in real-world, loaded conditions, it’s often less. The Hailong offers between 50 and 80 km in real-world cargo use, with a better reserve.

Integration. The E5 model features internal routing and a seamless design. The Syklo kit is visible on the bike. The overall look is clean and functional, but it doesn’t blend into the frame like a factory system. This is the trade-off for reversibility.

Reversibility. The Syklo kit can be removed and transferred to another bike—something that’s not possible with the Shimano system on the E5, which is permanently integrated into the frame.

Customization. Open-source firmware offers greater flexibility than the Shimano E-Tube app. Each rider can create assistance profiles tailored to their specific needs—a level of fine-tuning that isn’t available on factory-set systems.

In summary: The E5 model is the best choice for those who want a ready-to-ride electric cargo bike. The Yuba Kombi electrified with Syklo is the best option for more torque, a lower price, full reversibility, and advanced customization. For families who regularly transport children or tackle hills, the value for money clearly favors the kit.

Budget for an electric Yuba Kombi

Electrify a bike you already own: PowerTrail Z8 48V kit + battery: starting at €1,200, up to €1,800 depending on the battery. Installation at a Syklo network shop: €50 to €150. This is the most affordable way to get a high-performance electric cargo bike.

Buy a new Yuba Kombi bike and convert it to electric: Regular bike (about 1,000 €) + kit: between 2,200 and 2,800 € total. That’s €200 to €800 less than the E5 model (about €3,000), with a kit that’s three times as powerful. Excellent value for money for an electric cargo bike in this class.

Buy a used bike and convert it to electric: A used Yuba Kombi starts at €500 to €900. With the €1,500 conversion kit, the total cost is around €2,000 to €2,400. With this budget, you can get a high-quality longtail electric cargo bike. It offers the best value for money on the market—no similar setup exists in this price range. To browse listings, check out Troc Vélo, Le Bon Coin, or refurbished bike websites.

Financial assistance: Check with local authorities (city hall, metropolitan area, region). Some assistance programs cover electrification kits. Visit your local government’s website for more information—or send an email to the Syklo team, who can guide you.

Yuba Kombi-Specific FAQ

Is the kit compatible with the E5 or E6 model? The Syklo kit is designed for the Yuba Kombi pedal-powered bike. The E5 and E6 models already come equipped with a Shimano system. Replacing the factory-installed system is an option, but it requires removing it—a reasonable course of action in the event of a breakdown outside the warranty period, after a few years of use.

Can you keep all Yuba accessories? Yes. The kit attaches to the bottom bracket and does not interfere with accessories on the back of the bike: Monkey Bars, cushions, footrests, Pop Top, basket, and Utility Deck. All accessories in the Yuba line remain compatible and are available in stores or on the official website.

Does the kit affect the bike’s balance? The kit adds about 7 to 8 kg to the total weight. The center of gravity remains low. The balance of this cargo bike isn’t significantly affected—riding around town is just as enjoyable as before, with the added benefit of electric assistance.

Can the bike be stored upright with the kit installed? This bike is designed to be stored upright using the Stand Together kickstand—an essential accessory if you live in an apartment or have limited space. With the kit installed, upright storage is still possible. Just make sure the battery doesn’t get in the way.

What is a realistic range with two children and some elevation gain? With the Hailong 720 Wh, for family use on terrain with moderate elevation changes (such as in the Basque Country), the observed range is between 40 and 60 kilometers. On flat terrain with a light load, it can exceed 70 km. This is suitable for the vast majority of daily commutes in France.

Is this bike a good alternative to a car? For daily trips of less than 15 kilometers—to school, for errands, or for work—an electric Yuba Kombi cargo bike is an effective replacement for a second car. The kit’s pedal assist makes this bike suitable for all family members, regardless of fitness level. Over the course of a year, the savings compared to car maintenance and fuel costs are considerable.

Can you transport a baby carrier or car seat in the front seat? Yes. This cargo bike is compatible with a front basket (Bread Basket) available in the Yuba accessory line. For babies, a suitable seat can be attached to the front—check the Yuba dealer network to find recommended configurations and view pricing.

Where can I buy a Yuba Kombi in France? Bikes from the Yuba line are available at authorized dealers throughout France. Visit the Yuba website to view a list of partner stores, find their addresses and email addresses, and schedule a test ride. This is the best way to experience this cargo bike before you buy. For used bikes, websites like Troc Vélo and Le Bon Coin, as well as refurbishment platforms such as Rutile.bike, regularly post listings—it’s a good idea to set up alerts so you don’t miss out on great deals.

Is this cargo bike suitable for beginners to longtail bikes? It’s actually the best place to start when exploring the world of cargo bikes. The Yuba Kombi is the most accessible model in the lineup—thanks to its price, its ease of navigation around town, and its compact design, similar to a classic city bike. Adding a kit makes it even more accessible to riders of all types. It’s no coincidence that it’s the longtail cargo bike most recommended by specialty shops for families just getting started.