The below company makes a GEM motor replacement that is of higher quality than the stock motor. Ride for Fun uses this motor as well. You can have the company ship direct but they do not support any programming or other questions. It’s cheaper direct but there is no support. You can pay more from others that will help reprogram for higher performance. You can google a video on how to swap out the motor with your original. Go to their site or ride 4 fun and you can see the blue casing which is why it’s called the blue motor. Thanks.
D&D Motor Systems
215 Park Avenue
Syracuse NY, 13204
315-701-0635