Schwalbe Marathon Plus MTB Tire - 26 x 2.1, Clincher, Wire, Black/Reflective, Performance, Dual, SmartGuard, E-50Schwalbes most puncture resistant MTB tire is now approved for fast E Bikes. The central rib design rolls easily over hard paths, while strong outer lugs provide great off road traction. The SmartGuard provides superior puncture protection against foreign objects for a reliable ride. Product Specifics Color: Black Reflective Defined Color: Black Designed for ebike: Yes Flat Protection: Tread and Sidewall ISO Diameter: 559 26" MTN ISO Width (mm): 53