The Schwalbe G-One R gravel competition tire has been designed for light terrain, gravel roads and asphalt. Thanks to its Super Race carcass, it combines flexibility, speed and control at the highest level. New Boomerang profile to provide the best climbing traction and ideal rolling behavior. · Super Race carcass (flexible construction) for a particularly smooth ride with low rolling resistance and a high level of impact protection. The angled side knobs, together with the Super Race carcass, create the best grip in turns.