36v no controller so to a switch overvolting a 350w 24v to 36v making it a 700w moter and it flys . U can not stand on it and trun it on u will pull a wheelie. U have to push it along then turn it on , I standard on it and I went flying it was that quick. May need to use a dimmer switch to bring the power in . But for now if u get it rolling then turn it on u can hang on . But this is mad so dam fast I will get a gps mph for the test .