Smooth road tread with gentle low profile siping on the shoulders - the successor to the Durano Plus. Carefree road bike tire for training commuting and urban areas. Maximum puncture protection thanks to SmartGuard. TWN - An additional rubber coating on the side that protects against cuts and abrasions. SGRD - Smartguard equipped tires feature a 5mm breaker belt made from special Indian and partially recycled rubber. E25 - are rated for use with E-Bikes up to 25kph (15mph)