Bicycle Components & Accessories

FOMTOR Single Speed Crankset, Bike Crank Arm Set 170mm 104 BCD Road Bike Crankset, Mountain Bike Narrow Wide Tooth Chainring 32T, for MTB BMX Mountain Road Bicyle, Red BCD: 104mm(Outer Circle), 64mm(Inner Circle). This chainring's BCD(bolt circle diameter) is 104mm. Before submiting the purchasement, please make sure that your crankset's BCD is 104mm,otherwise they won't fit. Teeth: 32T. Fit for 9 Speed,10... FOMTOR Single Speed Crankset, Bike Crank Arm Set 170mm 104 BCD Road Bike Crankset, Mountain Bike Narrow Wide Tooth Chainring 32T, for MTB BMX Mountain Road Bicyle, Red