Product Description Technical Information:Series:Rival 22Crank Arm Material:aluminiumChainring Material:aluminium 7075-T6Bottom Bracket:GXP (BSA68)Gradation (2x):34-50, 36-46, 36-52Bolt Circle Diameter:110 mmCrank Arm Length:165.0 / 170.0 / 172.5 / 175.0 mmCompatibility:11-speedOther:X-GlideR™ chainringsTechnology:X-GlideR™Compatibility:SRAM Red 22 / Force 22/ Rival 22 Yaw™ front derailleurSRAM PC 1170 / PC 1130 chainTechnology:X-GlideR™: The chainrings in combination with the Yaw™ front derailleur ensure optimum shifting performance. The stiffer blades (5 mm, aluminium 7075-T6, CNC-milled) have shifting bolts in a modern design adopted from SRAM XX. CNC tensioning allows precise control of every tooth shape, every climbing aid and almost every shifting function of the chainring. Chainrings, chain and front derailleur form an integrated system for optimum performance. Manufacturer Number: 00.6118.249. Contents:1 x SRAM Rival 22 11-speed cranksetnot incl. GXP bottom bracket Manufacturer: SRAM LLC 1000 W. Fulton Market 4th Floor Chicago IL 60607 USA info@sram.com Distributor: SRAM Europe Sales and Services B.V. Paasbosweg 16 3862 ZS Nijkerk Netherlands info@sram.com