PROGRESS Tubular rear wheel SPACE DISC12X142 compatible with SHIMANO HG

Features:- These wheels are one of the fastest with best aerodynamic performance you can find. Check AIRBUS Wind Tunnel test in progress technology.- GRAPHENE is the world's strongest and lightest material which offers a totally revolutionary rim technology. Graphene-enhanced full carbon rims are 50g lighter and 20% stiffer.- Rear hub with a very strong three pawl ratchet mechanism. Engagement with 3 oversize pawls and steel ratchet with 24 teeth's.- A hub with Parallel Drilling technology ensures high precision 100% aligned bearing seats. PROGRESS hubs and bearings are designed for light weight, long lasting and best running performance.- High precision CERAMIC bearings with maximum precision and low friction that increase durability.- SAPIM CX aero spoke is the choice of champions and many teams at the Pro-Tour. Made in Belgium with an aerodynamic advantage and unbelievably high fatigue test results. We build them into our lighter wheels to achieve durable and long lasting wheels whi