The most puncture resistant MTB tyre is now approved for fast E-Bikes. With ECE-R75 mark. On the central ribs it rolls easily over hard paths, while strong outer lugs give great offroad traction. The SmartGuard(R) provides superior puncture protection. It is impossible to guarantee that a flat will never happen, but the Marathon Plus has the best defense against everyday tyre wreckers such as glass, flints or metal shards. Features: E-BIKE READY: For motor assist up to 50kph PROTECTION: SmartGuard(R) Flat-Less - the most effective level of protection, a belt of 5mm thick, flexible India rubber, partial made from recycled material. Protects even against thumb-tacks SIDEWALLS: TwinSkin which is an additional rubber coating to protect against cuts COMPOUND / TPI: Endurance compound specific to Marathon tyres for maximum durability / 67 TPI Pressure: 2 - 4 Bar Weight: 1250g ETRTO: SCR1958: 60-584 SCR1958A: 60-622 SCR1959: 54-559 SCR1960: 57-559 SCR1961: 54-584 SCR1962: 57-584 SCR1963: 54-622 SCR1964: 57-622 SCR1970A: 65-584 SCR1970B: 65-622