The XX Eagle crankset has long been the benchmark for world-class riders with its numerous championship wins, Olympic gold medals, and EWS series victories. The XX Eagle DUB Crank takes that standard to the next level. Engineered with carbon fiber and a foam core for unparalleled strength and stiffness. But its evolution doesn't stop there; the new XX Eagle Transmission (T-Type) direct mount chainring is a showstopper in terms of looks as well. The crankset's design is complemented by a unique bash guard system that can be easily removed and replaced, making it a hit among the roughest of riders. Carbon with foam core Light with maximized stiffness Stunning, never-before-seen look Removable bash guard Powermeter Ready Details: Model: FC-XX-D1 Chainline: 55.0mm Hub: Boost (148mm), SuperBoost (157mm) Chainring: 32 teeth Material: Aluminum/Carbon Bashguard: Removable (Included) Spindle: DUB Weight: N/A SRAM Eagle Transmission features a SRAM MTB WIDE crank with a 55mm chain line while using the Boost 148mm Over-Locknut Dimension hub standard. Eagle Transmission cassettes move outboard by 2.5mm to optimize for this wider, 55mm chain line. For bikes with SuperBoost 157mm hubs, a 55mm chain line crank can be used. For bikes with a 142mm hub spacing, a 52mm crank must be used. SRAM Eagle Transmission AXS Compatibility: The SRAM XX Eagle Transmission Crankset is compatible with the following: Frameset: Any frame that fulfills the “UDH Specification” featuring a hanger-less interface can be upgraded. The SRAM UDH Bike Finder lists all UDH bikes that are compatible with Eagle Transmission. Battery: SRAM AXS Battery Bottom Bracket: SRAM DUB "Wide": BSA73 , PF89.5 , PF92 , PF30 MTB73 , BB30 MTB73 , BSA MTB68SP Chain: XX SL , XX , or X0 Eagle Transmission chains Chainring: XX SL , XX , or X0 Eagle Transmission chainring Cassette: XX SL , XX , or X0 Eagle Transmission cassette Controller: AXS POD Controller , AXS Pod Ultimate Controller Crankset: XX SL , XX , or X0 Eagle Transmission cranksets Freehub: SRAM XD compatible freehubs PowerLock: Eagle Transmission PowerLocks only Rear Derailleur: XX SL , XX , or X0 Eagle Transmission rear derailleur SRAM Eagle Transmission is not compatible with previous-generation Eagle components. However, Eagle Transmission T-Type chainrings are backward compatible with Eagle chains, so they can be used on the current Eagle drivetrains. Non-T-Type Eagle chainrings will not work with Eagle Transmission chains.