SRAM SX Eagle 32T Boost Crankset - PowersplineSRAM SX Eagle 32T Boost Crankset Multiple price point options to allow you to hit the group price you need to build a better bike. Same chain retention performance as seen in all of the higher level Eagle drivetrain cranks. All new fully featured Eagle crankset. Now offering more Eagle options than ever before Steel Eagle direct mount ring as seen on NX Eagle For Powerspline cranks, use 118 73 Powerpline Bottom Brackets (bottom bracket not included)