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Five bolt Chainrings are used on smaller Micro and Mini-sized bikes for younger aged kids racing BMX. 5 Bolt Chainrings can only be used with five bolt Cranks. The five bolt holes on the crank is for the chainring attachment. This is also known or often called the spider. Be sure to have a complete set of chainring bolts on hand to install that 5 bolt chain ring.
Ciari BMX Race Chainrings 5 Bolt | Find the Best Rollout
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