Trek 21 speed 26" graphite bike converted to motorized bike. Modwheel 36V 11Amp Li-ion battery. Pedal assist AND throttle. I am the second owner of this great bike! Has been well maintained and stored indoors. It runs very well, very comfortable to ride, easy to get up hills and no problem handling the wind. Extra rim, tubes, charging cord and misc. accessories included. Cash only please, unless you have a smaller bike to trade :) The reason I am selling it is that I am 5'2" and this bike is just a little too tall for me to get on and off. My loss is your gain!