TheSchwalbe Marathon Plus Wheelchair Tyreare designed to combine the comfort and easy running of a pneumatic tyre, and the convenience ofSchwalbe'shighest level of puncture protection. SmartGuard®technology provides incredibly safe puncture belt for tyres. Unbeatable for more than 15 years. It has proved itself in practice more than any other tyre. Only tyres with SmartGuard® are real flat-less tyres. Available exclusively from Schwalbe. Schwalbe Marathon Plus Wheelchair Tyre Features SmartGuard protection Made from recycled rubber Weight: 470g (22x1.00) More info