• Warning!!

    Riding a tuned or deristricted EMTB is not a trivial offence and can have serious legal consequences. Also, many manufacturers can detect the use of a tuning device or deristricting method and may decline a repair under warranty if it was modified from the intended original specification. Deristricting EMTB's can also add increased loads for motors and batteries. Riding above the local law limit may reclassify the bike as a low-powered bike, requiring insurance, registration and a number plate.

    Be aware of your local country laws. Many laws prohibit use of modified EMTB's. It is your responsibility to check local laws. Ignoring it, has potential implications to trail access, and risk of prosecution in the event of an accident.

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Speedbox 3.0 + Trek Rail


New Member
Jan 20, 2020
Has anyone installed Speedbox 3.0 to Trek Rail (carbon frame)? If you have, please send a photo of the installation. There is hardly any clearance between the motor armor and motor, and not enough space for the Speedbox unit and wiring.


Aug 8, 2020
Minnesota USA
Try putting the module on the other side of the motor with the smaller connector under the plugs (horizontally) and the larger one in front of the motor plugs (somewhat vertically). Use some tape to protect the wires crossing over under the motor. Also use a piece of foam to keep the module from rattling around.

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