Schwalbe Marathon Plus Flat-Less Tyre gets a new dynamic profile and boasts many internal improvements. Rolling resistance the patented 5 mm thick SmartGuard layer, when compared to all generic products, has a significant advantage in rolling resistance. Recycling also in the SmartGuard, we now use a proportion of recycled rubber from old latex products. "Anti-aging" side wall is now lasts much longer before developing unsightly cracks when subjected to use with too low air pressure.The SmartGuard layer made from a flexible, special rubber offers particular resistance to shards of glass and flints. Even a thumbtack cannot penetrate this protective layer. The SmartGuard belt does not increase rolling resistance. The Marathon Plus rolls as easily as a tyre without protection. An additional rubber coating on the side protects against cuts and allows for uniform colouring. It's additional features are Twin skin, 3.5-6.0 Bar (50-85 psi), 67 EPI and maximum load capacity at maximum pressure is 110 kg. It measures 28 inches diameter by 1.1 inches width and black tread with reflex line sidewall.