UNPLATABLE - WITH A Distinctive TREKKING PROFILE. Whether asphalt or natural roads, the versatile tire is at home on all roads. In everyday life or on a really big tour. The robust construction can handle anything. Safe with SmartGuard, the most effective protective belt available for bicycle tires. UNPLATABLE WITH MARATHON PLUS Only Marathon Plus tires make the bike flat-proof. The 5 mm thick puncture protection even protects against tacks.