I am having a clear out of my bikes, I have 3 for sale. Here's 1. Here is my DIY electric bike, I made this as a bit of fun with a mountain bike I was given. You can adjust the settings so it drops to 250w road legal, then put them back to 1000w for proper off road power. It has a thumb throttle, pedal assist sensor, power cutting brakes and a computer readout so you can adjust power output and see your speed. In full power mode it will do 27mph on the flat without pedalling with my 110kg bulk on its back. Batteries are not included, I used my radio controlled helicopter batteries in a box on the rack at the back. There is an official cyclotricity battery you can get or LiPos from hobbyking will do the job too, if you know nothing of LiPos then it is probably best to get the genuine ones. It's range is entirely down to what you fit battery wise, I used 15ah and it uses about half of that for a 16 mile ride with road legal settings around a hilly area. You could also remove the kit and fit it to any 26" bike if you prefer.