Narrow-wide teeth prevent chain drop, updated tooth profile runs quieter Durable 4mm thick 7075-T6 aluminum with reversible laser etched graphics Compatible with 9-11 speed chains, allowing a 1X set up on most any drivetrain (works with SRAM 12sp, but not

RaceFace Narrow Wide Chainrings feature tooth profiling for chain retention and a blend of weight and durability suitable for XC, DH and everything in-between.7075-T6 aluminum, aerospace grade strengthCompatible with 9, 10, 11 and 12 speedStiff 4mm plate t