The 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, 5-bolt pattern and fits 3/32" chains. MCS chainrings are MADE IN THE USA!
BMXGuru.com / C&W Cycle
702 North St.
Morenci, MI 49256
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