The Shield R30 has been expressly made for road bikes. This mudguard ensures stable mounting via its U brackets and offers the best protection by covering almost the entire wheelMD-Quick Fixation: Easy to mount and removeRoad Bikes: Made for road bikes with a 30mm widthU Stays: Keep the mudguard rigid. No vibrations even on rough terrainAdjustable Clip: Adjustable mounts tube to fit each bike\'s geometryWheel Cover: Better protection of the rider and following companions by covering more than 80% of the wheelExtra Long Spoiler: Included for optimal protectionMaterial: Technopolymer resin,Fixation: MD-Quick: On fork and stays, adjustable to ? 75mm,Weight: 370g the pair,Blade Width: Road bikes: 30mm,Wheel : 700c.