Can ANYONE help withn this throttle issue please???


Active Member
Half the speed with similar throttle. Probably something different with the speed selector. Do you see voltages change on the red and blue when you pick speeds?
no i only see the same 4.3v and 3.5v I''m wondering if meter is set wrong because I physically change speed , I see wheell going faster and kmh changes . but i only see voltage between the blk and green and blk and wht and it doesnt change. Again Ib tie old one back in and its normal. Fast.


Active Member
That's a puzzle. A basic throttle has three wires. (1) Power, which is around 4.3V. (2) Ground. (3) signal which usually varied between 1.0 volt and 3.5 volt like you noted. Your unit has a speed setting, which apparently works.

How do you pick the three speeds? Is it a push button that sequences 1-3? Is there a start button there too? Did the second throttle come with a wiring diagram with wire info?

Most sane designers would use red for the 4.3 volts though. Just traditional.

Electric Bike Shops Near You