Shimano Alivio Octalink chainset FC-M4000
- Great value tough and stylish Mega-9 Alivio chainset offering slick hyperdrive shifting performance for off road enthusiasts
- Hyperdrive SG-X chainrings for fast and smooth gear shifts
- Replaceable chainrings
- 4-arm chainring, 96 / 64 mm BCD
- 9-speed compatible chainrings
- For use with 118 mm Octalink Bottom Brackets