Racing 5 Evolution  Hubs: oversized and provided with flanges for blade hammer-head spokes, smoothness ensured by sealed high-quality bearings The wheels have aero bladed spokes. Front wheel with 20 aero bladed spokes in radial pattern, rear wheel with 24 aero bladed spokes in Fulcrum's 2:1 Spoke Ratio Dynamic Balance which balances the concentration of the rim joint material during wheel rotation by using two oversize spokes. They have 24mm medium aero rim profile  Weight - 776g front, 980g rear