- The economical version of the ultimate touring tyre. Made for roads, tracks and trails of all continents. The tread pays homage to its legendary Marathon XR predecessor Features: * E-BIKE READY: For motor assist up to 25kph * PROTECTION: RaceGuard - A double layer of nylon fabric offering great protection for light and sporty tyres * SIDEWALLS: LiteSkin which offers light, thin sidewalls, for weight saving and reduced rolling resistance * COMPOUND: Endurance compound for maximum durability * TPI: 67 TPI * WEIGHT: 26 720g, 35c 580g, 40c 650g, **ETRTO** * SCR1930: 37-622 * SCR1931: 42-622 * SCR1932: 50-559 * SCR1934: 42-622