Originally Posted by
karma
most of the time yes you will need a tool to remove the rear sprocket.
anything over 49v with 63v caps is bad. it fine at 49v. there easy to replace if needed
these 9C controllers were made for 48v thats 54v fresh off charger...
i want to mod the shunt for more amps ... doc thinks it'll handle 35 cont. 50 on short bursts