The schwalbe marathon gt dualguard road tyre comes ebike ready certain faster ebikes require specialist tyres and the schwalbe marathon gt dualguard road tyre is one of them valid throughout europe the schwalbe marathon gt dualguard road tyre is ece r75 certified the schwalbe marathon gt dualguard road tyre features dualguard protection technology which combines two protection layer principles special india rubber amp nylon fabric under the new tread design to produce level 6 prote