A high performance double chainset from the classic ATB group, using the most advanced 10-speed Dyna-Sys chainrings and with forged HollowTech II aluminium cranks offering unrivalled strength-to-weight ratio.
Lightweight construction with external super smooth bottom bracket bearings for efficient use
Aluminium double anodized outer chainring with plated inner ring for excellent rigidity and durability
Optimised Q-factor for double chainset
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
Comes complete with bottom bracket for 68 and 73 mm frames

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