|My mountain bike was sitting around hardly getting any use. My friend got a Solar Bike kit put on his mountain bike and said it changed his life so I decided to do the same. I wanted something that gets about 40km/h so I chose the 1000W kit. I didn’t want the rack battery because I like to keep things compact but the 48V tube battery didn’t fit in the frame so I mounted it on the top bar. Works like a charm. It’s so quiet and fast but still very safe. My friend was right – changes your life! It’s simply just faster, cheaper and much more fun that driving a car in traffic. Get one!