Sold as a set for Pinarello F10, F8, 65.1, K10, K8 and Prince FX
Lightweight alloy cups with ACB steel race bearings for top and bottom. The AER-Series hybrid Steel/Aluminum maintains the quality and durability our bearings are known for, while shaving 35% of the weight.
Moving from the standard steel bearings to the AER saves 20g - not a race winning delta but nice to know you have it.
The Cane Creek crown race has a rubber seal that seals the bearing against the elements keeping water and dust out, a considerable upgrade to the OE version supplied by Pinarello
The top bearing compression ring fits deeper into the top bearing and ensure vertical and horizontal compression is optimal.