SRAM GX Eagle Lunar Super Boost 157mm DUB 170mm Crankset 170mm with new 32t SL XX1 chainring I bought this crankset for my daughter’s MTB by mistake as this model is exclusively for Super Boost frames. LBS swapped for a regular 148mm Boost Chainring to replace this one. So, crank arms and chainring are new. The chainring is a brand new XX1 SL CNC machined aluminum 12 speed X-SYNC 2. SuperBoost rear axle measures 157 mm like some Pivot, Evil, Devinci and Knolly bike models. Make sure this crankset fits your bike before bidding, no returns on this one. Any questions? I’m listening Happy bids!