Shimano FC-R7100 Chainring 50T-NK OneAsymmetric 110 BCD Compatible with HG 12 speed chains Hollowglide technology provides high rigidity and cuts down on weight while maintaining strength Offers better power transfer and quicker, more precise front shifting Material: Aluminum with anodized finish (Small); Aluminum + GFRP (Large) Drivetrain Speeds: 12 Chainring Bolt Circle Diameter: 110mm BCD Shimano Asymmetric 4 Bolt
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