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Sized to fit rings with an outside diameter of 41
The Profile Imperial sprocket has a 22mm bore
so good they even use it on their Mid to High end bikes
Spindle: 19mm chromoly
Color: Silver Anodized
MCS 37t BMX Chainring - Black - 104mm 4-bolt - USA Made 52mm Sized to fit rings withThe MCS 4 bolt chainring is an all American CNC machined product made of 6061 aluminum. It features an almost perfect round circumference, which will facilitate achieve an even tension of your chain. This chainring has a 104mm BCD, 4 bolt pattern and fits 3 32" chains. MCS chainrings are MADE IN THE USA! Size: 37tColor: Black
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