... electric bike with shimano 7speed gears, 36v10ah Li-ion battery, alloy frame and CE approval Electric systemMain ... 7 speed gears DerailleurSHIMANOPAS1:1 intelligent pedal assistant systemHandle barAl alloy With torque sensor controller.StemAl alloyController36V ... intelligent PAS, brushlessBrake leverAl alloy,cut-off when brakingCharger100V-240V, 2 ...