Race Face's new Direct Mount Single ring. Designed and machined in our Vancouver, BC facility, tested on the North Shore and in the Whistler Bike Park. FEATURES Narrow Wide tooth profiling ensures ultimate chain retention. Attaches as part of the RF Cinch system (using common Park BBT-22 bottom bracket tool) - allowing to switch between DM rings/spiders with ease. Utilizes RF proprietary spline design. 7075-T6 aluminum, aerospace grade strength. Stiff 4mm plate thickness to transfer loads without flexing. Compatible for 9, 10, 11 and 12 speed*. SPECIFICATION Sizes: 26, 28, 30, 32, 34, 36. Compatable with: RF cranks with CINCH System interface. Weight: 41g (26t) ranging up to 82g (36T). Colour: Black, Blue, Red, Green, Purple, Orange. *Please note: Not compatible with with Shimano 12 speed chains.