✨GTXR & SAMEBIKE RS-A01 Pro✨ Frame: 27.5 "Aluminum alloy down tube battery city frameFront Fork:27.5"titanium suspension fork with lockBrake:180 mechanical disc brakeHandle bar tube: aluminum alloyDerailleur: SHIMANO 7SpeedBattery:36V/15Ah lithium-ion battery(DMC...