【Compatible】Perfectly matched 9-speed, Downward compatible with 7-speed/8-speed, suitable for most mountain bikes, road bikes, city bikes
【Crank Length】 170mm, BCD: 104mm(44T, 32T), 64mm(22T)
【Removable】 Each chainring can be disassembled, which is convenient for replacement and reduces maintenance costs
【Crank Material】 Forged AL-6061-T6 aluminum alloy, high-strength steel, CNC machining, surface oxidation treatment, Lightweight and more durable
【Available Pedal Size】9/16", pedal thread universal 14mm