VCYCLE Nopea 700C Carbon Fiber Racing Road Bike Wheelset 50mm Clincher Shimano or Sram 8/9/10/11 Speed Vcycle basalt braking surface has the advantage of high temperature resistance for it can reduce the carbon road bike wheels probability of burning side.It also has good braking power,improving the braking effect. Novatec road hub which is made in Taiwan is durable,light and it can use 3-5 years under normal usage. 23mm is suitable for elementary training and competition. It makes our wheelset has lighter weight, better stability and road sense.Also,it improves aerodynamics by creating a more uniform airflow over the wheel. Skewers is lighter than steel skewers and it has high intensity, long service life. Brake pads are custom-made according to the carbon road bike rim and protect the brake side at the greatest extent.Four complimentary aero bladed spokes and nipples can replace the damaged ones. Weight: 1700+-20g/set; 24 months warranty for manufacturer defects Front weight :750<span class="a-text-bold">+</span>/-10g Rear weight :950<span class="a-text-bold">+/</span>-10g Size: 700C Type: Clincher Depth: 50mm Width: 23mm Finish: UD matte Brake Surface: Basalt Material: Toray T700 carbon fiber Spoke Holes: Front 20 rear 24 Maximum spoke tension: 130kgf Maximum rider weight: 120kg Maximum tyre inflation pressure: 120psi/8bar Model: Novatec road hub Front Hub: 2 sealed bearings; O.L.D: 100mm, AXLE: 9x108mm Rear hub: 4 sealed bearings; O.L.D: 130mm, AXLE: 10x140mm Cassette Body: Shimano or Sram 8/9/10/11 speed Color : Black Pillar patented cold forge technology,up to 20% more strength perfect aero shape,high elasticity and low drag coefficient. Color :black Sapim nipples are designed to attain maximum grip without the use of adhesives. Threads as the tension is increased and due to its unique,will not come loose during its use.