Bicycle Crankset 32T Hollow Crank MTB Crankset 104BCD Integrated Crank Chainring 170mm With BB91 Bottom Bike Crankset. Product name:Hollow integrated crank. Number of teeth: 8-12 speed compatible. Process: CNC, One-piece forging, anode sandblasting. The size is measured manually.
Please refer to the actual situation.