Carbon frame of electric bicycle - Stresses & Torsion test.

Electric mid motor for mountain bike with carbon frame

There are many questions about the constraints on the aluminum frame or carbon frame of an electric bicycle or even on the transmission with an electric motor for bicycles.

Our crankset motor kit is compatible with all types of frames whether it is carbon, steel, titanium, or aluminum.

Here is some detailed information that will allow you to understand why it is possible to easily transform your carbon bike into an electric bike with the LIFT-MTB bike motor kit.

The torsional stresses of a 80kg rider in a steep turn, or on a jump, pressing down with all his strength, will be much greater on a frame than the impact that the transmission of the motor’s power diffused throughout a climb on an electric enduro or downhill mountain bike could have electric.

Once the electric bike mid drive motor is placed on your bike, the extra weight will be about 3kg.

Let’s say you are 3kg heavier or lighter, it seems obvious that this will not change the reliability of your frame.re.

We did a lot of stress tests on the frame, the engine mount and drew a lot of test parts and did a lot of simulations, it turns out that the stresses are quite low in reality (at least much lower than the idea one might have).

Indeed, the peak power developed by the detachable motor for electric bikes will be much less than the force developed by a cyclist at 100% of hispower.

A cyclist who, during a sprint, pulls with all his strength on the handlebars and presses hard on the pedals will put enormous stress on the frame in torsion, and in traction on the transmission.

On the other hand, the electric mountain bike motor, like ours, diffuses the power at a regular rate, it transmits a power much lower than the maximum power of the cyclist, but will transmit this net of power in a constant way, limited only by the autonomy of the Li-ion battery, thus the torque applied on all the transmission organs.

The mid drive motor allows for a high average power output to the crankset, which greatly improves the cyclist’s performance over the entire effort, without the peak power output to the frame and transmission being any higher than when the cyclist is accelerating hard in a sprint.

And as 95% of users use the electric motor mountain bike lift-mtb to ride at a good pace, and don’t spend their time sprinting, adding their maximum power to the engine’s, the wear rate becomes equivalent to a normal wear of a user who would be in better shape than you, and who would simply be able to keep a steady pace longer than you.

Indeed, the peak power developed by the detachable motor for electric bikes will be much less than the force developed by a cyclist at 100% of hispower.

A cyclist who, during a sprint, pulls with all his strength on the handlebars and presses hard on the pedals will put enormous stress on the frame in torsion, and in traction on the transmission.

You can watch the video in the attached link where Santa Cruz carbon frames are tested against aluminum frames.

Against all received ideas, we see that carbon frames are more resistant than aluminum frames.

To conclude:

Whether you use a carbon or aluminum frame does not matterContrary to popular belief, carbon executives are generally more solids We sell as many kits for customers equipped with carbon frames as with aluminum frames, look at our photo gallery to convince you.

bike photo gallery