For 2012, Campagnolo makes some changes to its beloved Eurus wheels to improve the design making them even more versatile for climbing as well racing on the flats.  Campagnolo improves the rear wheel’s efficiency by incorporating its Mega G3 oversized hub design to improve its overall performance and reliability and responsiveness. 

The dynamic balance of the wheel is assured by special milling in the section opposite the joint. This balances the weight of the joint during rotation of the wheel. Both rims have a top bridge that is free of holes. Campagnolo replaces the steel nipples with aluminum nipples. This is a significant weight saving and gives the wheel greater torsional stiffness and greater vertical elasticity.  The Ultra Aero aluminum spokes are butted and the front wheel has radial spokes whereas the back wheel has Mega G3 design.

The hubs are in oversize aluminum with aluminum axles and self-aligning bearings. The rear hub has a larger flange to increase torsional stiffness and therefore wheel performance during acceleration and bursts of speed on the pedals

• Skewers: Included
• Spokes/Rims: 16 - front wheel 21 - rear wheel
• Mega G3 System (rear)
• Aluminum nipples and aero spokes
• 4x15 balls 5/32" stainless steel bearings
• Weight: 634 grams (front); 848 grams (rear)
• Height/Width: 24/20.5 mm - front wheel; 30/20.5mm - rear wheel 
• Light, reactive and aerodynamic, these wheels offer true quality indeed: great lateral and torsional stiffness and a unique balancing of spoke tensions.