Shimano Alivio FC-M4000 Octalink MTB ChainsetThe Shimano FC-M4000 Alivio Octalink Chainset with its two-piece forged aluminium construction features smooth and precise shifting performance due to its Hyperdrive technology.OctalinkThis FC-M4000 Alivio Chainset features an Octalink 8-spline interface between the bottom bracket and crank arms, providing better meshing and power transmission. When using Octalink, the splines do not deform the crankarm making it easy to remove the crank without using extreme force.Please Note: Bottom bracket is NOT included. Crank Construction: Hollowtech crank arm Cassette Compatibility: 9-Speed Chainring Sizes: 40-30-22T Bolt Circle Diameter: 96mm Crank Arm Length: 175mm Crank Arms: Octalink Bottom Bracket: BB-ES25/BB-ES25-E Chain Line: 50mmA 2 year warranty is offered with all Shimano products from Chain Reaction Cycles (3 years on Dura-Ace and XTR products).Buy Shimano Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.
