SRAM

S100 Eagle Crankset - Powerspline Bottom Bracket, B1

The SRAM S100 Eagle Crankset is a straightforward, durable 1x crank upgrade for riders building or servicing a SRAM Eagle drivetrain on a PowerSpline bottom bracket standard. Its aluminum crank arms balance stiffness and everyday trail durability, while the included steel X-Sync 2 chainring uses SRAM’s proven narrow-wide tooth profile to help keep the chain stable over rough terrain.

• Eagle drivetrain compatibility - Designed to pair cleanly with the SRAM Eagle ecosystem for modern 1x MTB setups
• Steel 3-bolt X-Sync 2 chainring - Narrow-wide tooth profiling supports consistent chain engagement and dependable retention
• Aluminum crank arms - Solid strength-to-weight feel for trail riding and high-torque climbs
• PowerSpline interface requirement - Requires a 118/73 PowerSpline bottom bracket (sold separately) for correct fit and function