Shimano Deore Chain Set M6120 12sp 55mm 30T 170mm

Great value Deore M6120 2-piece design chainset for 12-speed Dyna-Sys MTB HG-X transmissions Forged crank arms rigid whilst being incredibly strong and durable Designed to be used with a HollowTech II integrated bottom bracket that uses a wide bearing placement with a large axle diameter for increased stiffness, efficiency and added durability, the bottom bracket does not come with the chainset but can be purchased separately Lightweight aluminium chainring We recommend that the bottom bracket is initially installed by a bike shop to ensure perfect facing and fit 55 mm chain line for use with 148 mm O.L.D. frames Direct mount chain ring 12-speed Dyna-Sys compatible Length: 170 mm