Schwalbe G-One Allround Tire 27.5''x1.35 Folding Clincher Dual RaceGuard 67TPI BlackSchwalbe G One Allround Tire 27. 5 x 1. 35 Tubeless Folding Black Performance Addix RaceGuard. The G One Allround is the multi purpose gravel tire. It impresses with unique versatility and balanced riding characteristics whether on asphalt pavement dirt roads or even off road. Whether after work or on an adventure trip there are virtually no limits to the "Allrounder". The versatile tread rolls easily and with low vibration but grips safely and