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 strength - Compatible with 9, 10, 11 and 12 speed - Stiff 4mm plate thickness and I-beam construction transfer loads without flexing - Reversible laser etched graphics - Non-threaded bolt holes

Race Face Cadence Ring Set • 53 and 39-tooth rings • Compatible with Race Face Cadence cranks • Compatible with SRAM Red, Force, Rival, Apex, S900, S500, S300, S100 • Compatible with TruVativ Rouleur, Elita • Compatible with Shimano: All older, narrower spaced versions of 130mm BCD 10-speed road cranks, Dura-Ace: FC-7800 and older, Ultegra: FC-6600 and older, 105: FC-5600 (2011 and older), Tiagra: FC-4600 (only), Non-series: R550 (only) • Compatible with SRAM / Truvativ All 130mm BCD double road 10-speed cranksets, all years except Red 2012