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Rennen Design Group Bicycle Parts

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Rennen Threaded Singlespeed Chainring, 104BCD X34t - Black
Rennen Threaded Singlespeed Chainring, 104BCD X34t - Black

Internal threads eliminate the need for chainring nuts Precision machined 7075-T6 aluminum, 3/16" thick so they stand up to the abuse of … read more

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your price $45.00

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Rennen 38.9 39t 104 BCD Chainring Black
Rennen 38.9 39t 104 BCD Chainring Black

Decimal gearing manipulates the size of existing gearing to make it slightly harder or easier depending on your needs 3/16" thick 7075-T6 Aluminum … read more

Currently Sold Out

your price $44.99 + ships free

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Rennen 38.8 39t 104 BCD Chainring Black
Rennen 38.8 39t 104 BCD Chainring Black

Decimal gearing manipulates the size of existing gearing to make it slightly harder or easier depending on your needs 3/16" thick 7075-T6 Aluminum … read more

Currently Sold Out

your price $44.99 + ships free

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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 single ring applications.

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