Outback 26 7-Speed Lithium Powered Eco-Friendly Electric Bike Battery - LiFEPo4, 36V/10AH Motor: 250W, 36V Brushless Alloy Gear Set - Shimano 7-Speed Drivetrain Controller: Speed sensor 36V brushless PAS (pedal-assisted system) Brakes: F/R - Tektro V-Brake