SRAM X01 Eagle drivetrains are engineered for optimal performance. Eagle drivetrains are designed, tested, and proven to deliver durable performance for all riders. Eagle technology provides an expanded, optimum, gear range and is 100-percent compatible with all levels of SRAM Eagle drivetrain systems. Details: Includes: Crankset, shifter, rear derailleur, cassette, and chain Speeds: 12-speed Color: Lunar SRAM DUB Bottom Bracket Sold Separately SRAM X01 Eagle DUB Crankset with chainring Hub: 135/142mm, Boost 148mm, Superboost+ 157mm Chainring teeth: 32 Material: Carbon SRAM X01 Eagle Rear Derailleur: Cage: Long Max Cassette Teeth: 52 Cable Pull Ratio: X-actuation SRAM X01 Eagle XG-1295 Cassette: Gear Range: 10-50t or 10-52t Required freehub: SRAM XD Cog Sizes 10-50t: 10,12,14,16,18,21,24,28,32,36,42,50 Cog Sizes 10-52t: 10,12,14,16,18,21,24,28,32,36,42,52 SRAM X01 Eagle Trigger Shifter: Shifter Type: Trigger Cable Pull Ratio: X-actuation Cable Length (SL): 2200mm Clamp: Discrete Handlebar clamp included, MMX compatible SRAM X01 Eagle 12-Speed Chain: Outer Link Finish: Nickel Color: Silver Inner Link Finish: Chrome Plated Chain Connector: PowerLock Chain Length: 126 links Pin: Hollow Pin PowerLock Link included ** Dub Bottom Bracket not included Compatibility: Chain: 12-speed Eagle chains Bottom Bracket: SRAM DUB bottom brackets Pedal: All 9/16" pedals Compatible Freehub: SRAM XD