SRAM

S100 Eagle Crank Arm Assembly - Powerspline Bottom Bracket, B1

SRAM S100 Eagle Crank Arm Assembly is a durable, no-nonsense option for riders building or refreshing a SRAM Eagle 1x mountain bike drivetrain on a Powerspline bottom bracket standard. The forged aluminum crank arms are built for everyday trail use, while the 3-bolt direct-mount interface makes it easy to pair with SRAM Eagle X-Sync 2 chainrings (sold separately) for a clean, secure chainring setup.

• Robust aluminum crank arms - Proven material choice for impact resistance and reliable long-term service in MTB conditions
• 3-bolt chainring interface - Compatible with SRAM Eagle X-Sync 2 chainrings (chainring sold separately) for straightforward drivetrain tuning
• Powerspline bottom bracket fit - Designed to run with 118/73 Powerspline bottom brackets (sold separately), ideal for frames and builds using this spindle standard