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Shimano 119 Bicycle Chainrings

About Shimano - "Shimano practices good local citizenship, pursues continued access to those areas that are enjoyed by outdoor enthusiasts, and is committed to minimizing our impact on the environment."

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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Shimano Sora R3030-CG (chainring guard model) 50t 110mm 9-Speed Chainring, Black
Shimano Sora R3030-CG (chainring guard model) 50t 110mm 9-Speed Chainring, BlackShimano

Shimano Sora R3000/R3030 9-Speed Chainrings Item Specifications Color: Black Material: Aluminum Chainring BCD: 110 Ring Position/TYPE: Outer Drivetrain … read more

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Shimano

"Shimano practices good local citizenship, pursues continued access to those areas that are enjoyed by outdoor enthusiasts, and is committed to minimizing our impact on the environment."

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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 the outer position.

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