2lbs(battery included) - 20sec to install (no tools) electric bicycle power accessory with smart - simulated torque response(STR) - nothing else comes close. Front or rear wheel mounts make cycling more efficient and fun. A simple quick release clamp, connect the 3s LiPo battery pack and start pedaling. The item "Electric bike power fitness accessory kit assist calorie cycling hills low cost" is in sale since Friday, March 23, 2018.This item is in the category "Sporting Goods\Cycling\Electric Bicycles". The seller is "redesteem" and is located in Cotati, California. This item can be shipped worldwide.