There are 3 main factors to find out if the TSDZ2 crankset motor fits your current bike. Internal diameter of crankset, width and wall thickness.
The motor is compatible with bottom brackets with an internal diameter of internal diameter of 33.5 to 35 mmand a width from 68 to 73 mm and a thickness of wall thickness wall thickness (or clearance) of less than 8 mm. This type of crankset is generally referred to as BSA or JIS.
When you’re about to add an electric motor to your bike (follow our tutorial here), it’s important to important to consider several aspects. First of all, you need to examine the geometry and size of your bike frame to determine whether the motor can be fitted. Bikes with carbon frames must be fitted with aluminum bottom brackets to avoid any risk of damage to the carbon by the motor.
If your bottom bracket diameter istoo small or too large, this may limit the possibility of mounting the motor.
Next, you need to check whether your bike has enough space space for the battery. If your bike is small, this can be a challenge, but there are workarounds, such as battery bags or rack-mounted batteries.
Finally, it’s important to examine the quality of your transmission and brakes to find out if they are suitable for adding an electric motor. If your transmission isn’t in good condition, it may not be able to handle the extra power from the engine (discussed here), and if your brakes aren’t powerful enough, it could cause safety issues.
Taking all these aspects into account may seem tedious, but it can help you achieve a more enjoyable and safer riding experience with yourelectric bike.
In summary, the following points should be checked:
As you can see, there’s only a limited space between the motor axle (which is inserted into your bike’s bottom bracket) and the lower motor housing/support. This space can only accommodate 8 mm of space. An 8 mm gap is generally sufficient to run cables under the bottom bracket (even if you have to remove the guide or sand it down) on aluminum, steel and titanium frames, but most carbon bikes have too thick a shell/wall around the bottom bracket for a TSDZ2 to be compatible. Bikes with carbon frames must be fitted with aluminum bottom brackets to avoid any risk of damage to the carbon by the motor.
In some cases (particularly with wide-tyred bikes) the base tubes (the rear part of the frame that runs to the derailleur hanger) can bend at an acute angle from the bottom bracket, usually to accommodate a very wide tire (fatbike type), and the motor can then touch the frame at this level. This will prevent you from completely inserting the motor into the bottom bracket.
In addition, the frame tubes must allow
Available battery length
Diameter of down tube for battery mounting
The shape of the down tube for battery mounting
For a typical Dutch-style bike (like Decathlon’s ELOPS 520), it’s best to install the battery on the seat tube. In this case, the seat tube must be long enough to accommodate the battery. It is important to check that the battery can be installed comfortably without affecting the rider’s comfort.
By taking these dimensions into account, you’ll be able to install your electric motor kit on your bike in complete safety and get the most out of your experience. and get the most out of your electric bike experience of riding an electric bike.