- Aluminium rim and carbon structure in either 50mm or 80mm profiles.
- Aluminium hub body with oversized flange on drive-side.
- Bearings: - Silicon Nitride. USB bearings over standard bearings are 30% lighter 40% more resistant and 50% smoother.
- Fulcrum Dynamic Balance in the rim: thanks to special operation of the production process the carbon fibre layup is positioned in such a way as to obtain perfect rim balance.
- 21 at the rear; the 80mm version has 16 front and 18 rear both in Fulcrum 2:1 ratio for greater wheel stability and improved power transfer to the rear wheel. They feature the anti-rotation system keeping them aero at all times.
- Weights: 80mm- 865g, 1065g.