Set of 3 nylon motor gears for the Bafang motor used on Surface 604 Shred, Shred XS, and Quad eBikes. These gears are the internal reduction mechanism that transfers motor power to the wheel.
When they wear, you will hear grinding and the motor may feel like it is spinning without driving the wheel. Replacing the gear set is significantly cheaper than replacing the entire motor and can be done with basic mechanical skills.
Have one? Share your experience.