Class-leading XTR Trail 11-speed Dyna-Sys chainset, integrating the bottom bracket & chainset into a strong, rigid, yet lightweight unit. Super-lightweight Hollow Tech II cold forged Duralumin crank arms
- hollow design saves weight whilst increasing rigidity & durability. Easy to use splined bottom bracket spindle connection provides a rigid & secure interface between crank & spindle. Hollowglide outer chainring is made with a titanium/aluminium composite hollow 3D structure to maximise stiffness whilst keeping weight at a minimum. Titanium teeth are used to create a stiff, light weight & hard-wearing chainring Key Features Trail Ride Specific Hollow Tech II Crank Arm Cold Forged Aluminium for Strength & Durability Gear Combination: 40-30-22T Standard Q-Factor (168mm) Durable Titnaium Teeth Hollow Glide Hollow Gear Construction Optimised Rigidity, Lightweight & Durability