The most evident changes are immediately noticed on the first shift. The new design of the chain up shift and downshift zones makes shifting extremely fast and precise.

The axle of Athena™ is the brand new Power Torque System™, which makes it possible to obtain very high values of torsional stiffness and efficient power transmission, without increasing the lateral bulk.

• Full-carbon unidirectional-multidirectional cranks 
• Light alloy fixing bolts and nuts 
• Llight alloy chainrings 
• Chainrings with XPSS™ (eXtreme Performance Shifting System) 
• Chainrings with hard anodization treatment 
• 8 pins on the large chainring 
• Integrated POWER-TORQUE™ axle
• Requires POWER-TORQUE™ BB cups
• 640g