Smooth tread race style tire with siped shoulder grooves for improved traction Smooth tread race style tire with siped shoulder grooves for improved traction Award-winning 3x67 EPI carcass construction with additional RaceGuard protection is proven to be fast in tubeless use and at the same time it equips the Schwalbe One with a high level of safety High performance ADDIX compound is extremely durable and reliable in every situation - even on wet winter roads TLR - Tubeless compatible casing, sealant required RCGD - RaceGuard - A synthesis of special india rubber and several layers of nylon fabric offers very effective protection against penetration punctures while minimizing penalties