Long lasting tire with a 3mm GreenGuard belt and anti aging sidewalls. The Endurance Compound rolls for thousands of kilometres with excellent performance characteristics and low abrasion. EBIKE25 - tires with this designation in the Features section are approved and tested for E-bikes up to 25 km/h. TWN - An additional rubber coating on the side that protects against cuts and abrasions. Please note that EBike rated tires also can be used with non-Ebikes and are generally more durable than standard tires.