I recently acquired a 24v city shopper in as new condition, it had been stored for some time and the battery was dead. As a new battery was needed I thought it would be worthwhile to upgrade to 36v.
So a brainpower controller and a s866 lcd were installed along with a 36v yosepower battery, everything works fine under no load conditions and upwards of 5 or 6 mph, but until this speed is reached there is a shuddering from the front wheel motor (? octopus 3 phase wires) worse if the throttle is used from standstill.
The torque washers are installed correctly and there are no mechanical issues with the spindle or forks.
Is the motor not up to the job, should I revert back to 24v, or is there some incompatibility between the controller and the motor that can be resolved?.
So a brainpower controller and a s866 lcd were installed along with a 36v yosepower battery, everything works fine under no load conditions and upwards of 5 or 6 mph, but until this speed is reached there is a shuddering from the front wheel motor (? octopus 3 phase wires) worse if the throttle is used from standstill.
The torque washers are installed correctly and there are no mechanical issues with the spindle or forks.
Is the motor not up to the job, should I revert back to 24v, or is there some incompatibility between the controller and the motor that can be resolved?.