Description
Titanium Ultra-Torque axle and titanium fixing bolt for light weight. Hollow cranks and 4 spider arms with Ultra-Hollow Technology. New chain rings with improved shifting ramps and pins. Ceramic Ultra Level Technology CULT bearings for ultimate smoothness. Standardized BCD 145/112mm for all chain ring sizes. 603 grams Titanium Ultra-Torque axle and titanium fixing bolt for light weight Hollow cranks and 4 spider arms with Ultra-Hollow Technology New chain rings with improved shifting ramps and pins Ceramic Ultra Level Technology CULT bearings for ultimate smoothness Standardized BCD 145/112mm for all chain ring sizes