A high performance chainset from the classic MTB group, using the most advanced 10-speed Dyna-Sys chainrings.

Key Features:

• Forged HollowTech II aluminium cranks offer unrivalled strength-to-weight ratio
• Lightweight construction with external super smooth bottom bracket bearings for efficient use
• Drilled steel and carbon composite construction middle ring combined with a thicker aluminium double anodized 42 tooth, and plated aluminium 24 tooth ring for excellent rigidity and durability
• Close ratio gear combination: 42-32-24T provides improved cadence while reducing pedal feedback on suspension bikes
• HG-X chainring with patented spike pins give smooth and fast gear shifts under load
• Stiffness and strength increased with advanced design due to wider spaced bearings and oversized axle
• 104 / 64 PCD four-arm chainrings
• For use with 10-speed HG-X MTB chains only
• We recommend that this bottom bracket is initially installed by a bike shop to ensure perfect bottom bracket facing and fit
• Comes complete with bottom bracket for 68 and 73 mm frames
• Average weight 862 grams (175 mm including BB)