Now with a new dynamic profile. On the central rib it rolls easily over hard paths, while the strong outer lugs give it great off-road traction. The SmartGuard provides superior puncture protection.Level 6 SmartGuard:Most effective protection belt available for bicycle tires. A substantial, 5 mm thick layer of flexible, special india rubber offers durable protection. Works also for objects that lodge in the tread. Even a thumbtack wont harm it.Flat-less:Most effective protection belt available for bicycle tires. A substantial, 5 mm thick layer of flexible, special india rubber offers durable protection. Works also for objects that lodge in the tread. Even a thumbtack wont harm it.E-Bike Ready 25:In standard pedelecs that have motor assist up to 25 km/h, there is no legal requirement for a special tire. But even with these bikes, loads and average speeds are higher than in regular bikes, therefore we recommend only certain tires as E-Bike Ready 25.Performance Line:Excellent quality for intensive use. These are the best value for money tires.