104 BCD 32T 34T 36T 38T Mountain Bike 170mm Crankset, Aluminum Alloy MTB Crank Set Round Narrow Wide Chainring Bottom Bracket Bolts, fit Shimano, FSA Gaint. 【Chainring】Single speed narrow wide 104mmBCD, 32/34/36/38T, Round, Rainbow/Black/Red/Blue/Gold, Thickness 4mm (1.9mm Narrow, 3.7mm Wide).
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