Narrow wide direct mount chainrings for Race Face Cinch cranks. The chainring is designed to give the optimum chainline – in the middle of the cassette. This gives the smoothest shifting across the cassette and the straightest chain when in the largest or smallest cog. The tooth profile of our narrow/wide chainrings maintain excellent wear for a durable product and has an optimized chainline for 1x systems. Fits: RaceFace Cranksets SixC, Next SL, Turbine Cinch, Atlas Cinch Compatible with all 9, 10, 11, & 12 speed SRAM drivetrains Compatible with all 9, 10, & 11 speed Shimano drivetrains Specifications: Bottom Bracket Types: GXP and Boost Machined from solid 7075 T6 Aluminum Anodized Black with Laser Etched Graphics Chainline: GXP: 48mm from the bottom bracket centre Boost: 51mm from the bottom bracket centre Ring Offsets: GXP: 6mm Boost: 3mm Compatible with all 9, 10, 11 Shimano and SRAM drivetrains, 12-speed SRAM Eagle drivetrains Weight: 28T – 75g 30T – 85g 32T – 95g 34T – 105g 36T – 115g