THE FLAT-LESS TIRE. Schwalbe's best selling model. The most puncture resistant pneumatic tire there is. In addition to the superior puncture protection it features many inner values: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 use a proportion of recycled C50rubber from old latex products.„ANTI-AGING SIDE WALL. It now lasts much longer before developing unsightly cracks when subjected to use with too low air pressure.E-BIKE READY. Due to its great properties Marathon Plus is an ideal choice for E-Bikes (E-25). The main sizes are approved and tested for E-bikes up to 50 km/h.FLAT-LESS WITH MARATHON PLUS.Only Marathon Plus tires make your bicycle flat-less. The 5mm thick puncture guard protects even against thumbtacks.