Drivetrain System (3)

Brand: Prowheel  Color: Black Speed: 7/8 Speed Chainring: 52T Chain guard: Double plastic chain guide Arm length: 170mm Bottom bracket type: Square taper Recommended bottom bracket axle length: 120mm Weight:...

Option: 1, Crankset only 2, Crankset + BB: come with 110.5mm bottom bracket —————————————————————————— Crankset model: Prowheel Ounce Color: Black Arm color: Bright black Crank arm material: Aluminum alloy Max...

Option: 1, Crankset only (Black)  2, Crankset (Black) + BB: come with 110.5mm bottom bracket 3, Crankset only (Silver) 4, Crankset (Silver) + BB: come with 110.5mm bottom bracket ——————————————————————————...