Steel-titanium (6 Ti sprockets) version - excellent compromise between weight savings and cost
Ultra-Shift aluminium frame for last twosprocket triplets - precision and greater stiffness, weight savings
Ultra-Shift sprockets synchronization - improved shifting precision, less stress for the chain
Ultra-Shift teeth shape - upshift optimization
Optimized teeth space - longer life, lower wear
Nickel-chrome surface treatments on steel - longer life, lower wear
Light-alloy lockring - weight savings
Weight - 177 g