Description
Fit for: Fixed Gear/Track Bike(Single Speed Bike), it is not for 7-12 speed bike. it is for single speed bike only.
Chain compatible:only for 1/2*1/8 chain
Size: 144BCD, Tooth: 47/49/51/53/55/57/59/61T
High Strength Aluminum , CNC processSurface anodized -corrosion and anti-rust,Higher hardness.






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