Race Face 104 NW Chainring 104BCD 34T OrangeNarrow 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 Shimano 12sp chains) 30T rings are threaded for standard M8x0. 75 chainring bolts Specifications: ring type single (anti chain drop) mount 4x104mm teeth 34t oval round round color orange