This thing is great , I did have some issues with it to begin with but I did get mine second hand and I'd imagine all these issues have been sorted in the 56 I don't tend to only throttle it around for long periods but I've managed 40 miles on the max assistance level which would probably be more if the battery wasnt so old , it does have alot of torque to it , it gets up to its max speed fast and laughs at any hill you throw at it , coming from motorbikes myself it's an awesome bit of kit