Shimano Slx M660 Chain Set

All-mountain SLX HollowTech II chain set is tough and aggressive yet also lightweight and excellent value.

The HollowTech II Chain set features hollow forged crank arms, which are both lightweight and rigid whilst being incredibly strong and durable.

HollowTech II integrated bottom bracket design uses a wide bearing placement with a large axle diameter for increased stiffness, efficiency and added durability.

This triple version comes with a drilled steel and carbon composite construction middle ring for excellent rigidity and durability.

Mega9 HG chain-rings for optimum shifting performance.

SG-X chain-ring with patented spike pins give smooth and fast gear shifts under load

Two tone anodized finish for long lasting good looks.

170mm crank length. 44/32/22T

Comes complete with bottom bracket for 68 and 73 mm frames