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- 12% ovality offers greater traction, 115 degree clocking maximizes power stroke \n- 30 tooth is the only oval ring that fits all 104BCD rings, using unique countersunk spacers and M5 Torx bolts \n- Narrow-wide teeth prevent unwanted chain drop \n- Built-in offset for ideal chainline, meaning a quieter drivetrain\n- Excellent mud shedding performance for extended ring life\n- Compatible with 9-12 speed chains, allowing a 1X set up on most any drivetrain.\n- Made from 7075-T6 aluminum alloy \n- 49g (32t)