Full-carbon unidirectional multidirectional - stiffness, weight savings and long fatigue life
Hollow cranks (Ultra-HollowTM Structure) - lower weight with same stiffness and life
Ultra-Shift light-alloy chainrings - weight savings, increased stiffness
Ultra-Shift hard-anodizing treatment - increased resistance to wear, corrosion-proof
Ultra-Shift chainrings synchronization - improved shifting precision and quickness
Ultra-Shift specialized shifting sectors on outer chainrings - improved shifting precision, quickness and efficiency
Ultra-Shift asymmetric teeth profile on inner chainrings - shifting and chain crossing optimization
Triple gaskets low-friction bearing seals - good insulation with the highest smoothness
Light-alloy nuts and bolts - greater weight savings
8 pins on the large chainring - faster shifting
Weight - 695 g

Click on thumbnails to see larger images