• Great value Deore HollowTech II design chainset for 10-speed Dyna-Sys MTB HG-X transmissions
• The HollowTech II Chainset 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
• SG-X chainring with patented spike pins give smooth and fast gear shifts under load
• Lightweight aluminium outer with steel/glass fibre composite inner chainring
• We recommend that the bottom bracket is initially installed by a bike shop to ensure perfect facing and fit
• 48.8 mm chain line for use with 135 /142 mm O.L.D. frames
• 96 / 64 mm bolt circle diameter
• 10-speed Dyna-Sys compatible