Race face's new direct mount single ring. Designed and machined in their vancouver, bc facility, tested on the north shore and in the whistler bike park.Race face direct mount rings deliver substantial weight saving compared to a standard SRAM chainring and spider combo. And with added benefit of narrow/wide tooth configuration.Features:Narrow wide tooth profiling ensures ultimate chain retention.Fits SRAM gxp cranks with the removable spider.Replaces your existing chainring and spider which is attached via 3 bolts on the back of the spider.Remove spider and simply use these same 3 bolts to re-attach the race face dm ring7075-t6 aluminum, aerospace grade strength.Stiff 4mm plate thickness to transfer loads without flexing.Compatible for 9, 10 and 11 speed.Compatible with SRAM cranksets with a removable spiderNarrow wide tooth profiling ensures ultimate chain retention.7075-t6 aluminum, aerospace grade strengthStiff 4mm plate thickness to transfer loads without flexingCompatible for 9,