The stylish Shimano Alfine FC-S501 crank is available with single or dual chainring guards 45T chainrings.

Features
Integrated crank arm and bottom bracket – Increased rigidity with less weight
Wider bearing positioning – Rigidity is enhanced and pedaling force is efficiently transmitted
Precision bearings – Low maintenance and simplified installation

Specifications
170mm crank arm length
Uses an outboard 24mm compatible bottom bracket

Mfr Claimed Weight
TBC