50mm depth Proton equiped Orbit’s hub has an awesome performance on aerodynamic force and acceleration. Full carbon rim lowers the weights effectively. And basalt braking surface avoids explosion caused by overheating, especially when brake quite long while. Proton is the best choice of the best.
Spoke： DT Aerolite 2.0/2.3*0.9/2.0
Spoke count： 18F/24R