Rival Crank Arm Assembly E1 Crank Length (mm):172.5 Melonite QPQ high strength steel

Melonite QPQ high strength steel shaft for increased durability

or wrench to operate

Air spring adjust for preload

Plenty of space for your day at the office – no matter whether your office is in a meadow

chrome vanadium steel tools

Rival Crank Arm Assembly E1 Crank Length (mm):172.5 Melonite QPQ high strength steelSRAM has taken aluminum to another level. Careful engineering has resulted in crankarms that optimize stiffness to weight ratio, with material only where its needed 8 bolt interface compatible with power and non power AXS spiders and integrated chainrings (Chainring and spider sold separately) DUB bottom bracket adds durability and simplicity (Bottom bracket sold separately) Aluminum arms optimized for stiffness and light weight