Shimano alivio m4000 octalink 403022 9 speed triple chainset blacksilver aluminium 170mm
The shimano alivio m4000 octalink 403022 9 speed triple chainset is for smooth and precise shifting performance with hyperdrive technology the crank arms feature hollowtech construction and octalink bottom bracket fitting the chainrings are steel with 40 30 and 22 tooth options available in blacksilver only with crank lengths 170 or 175mm