Marathon The original: The archetypal high quality touring tyre. The highly elastic GreenGuard layer is 3mm thick. One third of the GreenGuard is made up of recycled latex products. The Anti-Aging sidewall can withstand the typical cracking that results from overloading for much longer. Features: E-BIKE READY: For motor assist up to 25/50kph depending on the model REFLECTIVE STRIPE: For extra visibility PROTECTION: GreenGuard - A 3mm flexible, special India rubber layer, partly made from recycled material SIDEWALLS: TwinSkin which is an additional rubber coating to protect against cuts COMPOUND / TPI: Endurance compound specific to Marathon tyres for maximum durability TPI: 67 TPI WEIGHT: 520g (700x25)