GCN Tech s Ultimate Guide To Bike Wheels Which Is Right For You The item road bike thru axle carbon wheel 50mm clincher tubuless tubular bicycle wheelset is in sale since Saturday, July 14, 2018. Front 2 sealed bearings, O. Model Costelo 50mm tubuless/clincher/tubular Material Carbon Fibre-Toray T700 Size 700C Appearance 3K/12k Finish Matte/Glossy Rim depth 50mm Rim width 25mm Brake Line Width 14mm Rim type Tubuless / Tubular/ Clincher Wheel Out Diameter 633mm ERD 544mm Assembly Hole Dia 7.5mm Spoke Hole Dia 4.5mm Valve Hole Dia 6.5mm Flatness.