Single Speed Bike Crankset + 45T-58T Chainring 170mm Crankarm 130 BCD Crank Set
Specifications: 45T 47T 53T 56T 58T; standard 130mm BCD; 170mm Crank Arms. Length: 170mm. 1 Set Bike Crankset (Chainwheel and Chainarm). Compatible: single 3/6/7/8 speed chainring. Crank Arm We'd like to settle any problem in a friendly manner.