Description
A high performance chainset from the classic MTB group, using the most advanced 11-speed Dyna-Sys chainringsForged HollowTech II aluminium cranks offer unrivalled strength-to-weight ratio,Lightweight construction with external super smooth bottom bracket bearings for efficient use,Hollow chainrings using drilled steel and carbon composite construction middle ring, combined with a thicker aluminium and carbon composite outer ring, and plated aluminium inner ring for excellent rigidity and durability,Close ratio gear combination: 40-30-22T gives 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,70 degree spider arm for optimal rigidity,For use with 11-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.
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