For Cyclists Seeking New Adventures The Gravelking offers a level of performance and durability that makes it at home on the road and on the trail. Touring and gravel race tested, the Gravelking makes it easy to take that road less travelled. Compound & Cord & Casing Natural rubber compound, puncture protection breaker and a special low rolling resistance casing make the GravelKing a go-anywhere tyre. Tread Pattern Designed to suit diverse touring styles. Gravel, dirt or rough pavement.