This barely used controller will work with all GM brushless hub motors no matter what voltage your motor is. I was using it with a 36v 500w GM motor powered with a Ping 48v/20ah (60v hot off the charger) and a 9.6v NiMh booster pack. Normal voltage was 65v with the boost pack switched on and I had no problems. The wires are all labeled and the color codes are the same as the 36v controllers. Going up a super steep hill my watts-up meter shows an amp draw of 38a so I would guess this is at least a 30a rated controller.
Guaranteed to work.
The only reason I'm selling is that I am going to a 600w BMC motor and this controller won't work with it.
$40 plus actual cost of shipping.
Nick