Blackspire 64 Bicycle Chainrings
Bolt Circle Diameter (BCD) is the diameter of an imaginary circle running through the center of the chainring mounting holes. It is always defined in millimeters.
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Showing 9 products:
Blackspire Super Pro 4-Bolt 9/10sp Chainring, 64mm x 26T, Black
BuyPART NUM 554057
your price $28.70
BuyPART NUM 554057 
Blackspire Pro 4-Bolt 7/8sp Chainring, 64mm x 28T, Dark Gray
BuyPART NUM 555989
Ships Freeyour price $36.93 + ships free
BuyPART NUM 555989 
These models are available for online purchasing and can be shipped directly to you.
Bolt Circle Diameter (BCD) is the diameter of an imaginary circle running through the center of the chainring mounting holes. It is always defined in millimeters.
Chainring Teeth
These rings can be used in the inner position.
Buy this product and your entire order ships for free.
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