Road-Speed with Cyclocross Grip: After extensive development work and long testing phases, Schwalbe presents its fastest gravel tire to date: the G-one rs. Back in 2015, when few cyclists even knew the term gravel, Schwalbe launched its first gravel tire, the G-one Allround. Seven years later, gravel has evolved into a fully-fledged cycling segment, with specific new products, events, and an ever-growing gravel community. Competitive cycling has always been a significant driving force for Schwalbe and the R&D team, with the steadily increasing number of gravel races providing additional motivation.