Schwalbe Marathon GT 365 Tire - 29 x 2.15, Clincher, Wire, Black/Reflective, Performance, FourSeason, DualGuardThe Marathon GT 365 for safe rides throughout the year in almost every condition. The lamella tread and the specially developed FourSeason compound provide full grip, no matter what time of the year you ride your bike. Fitted with DualGuard puncture protection technology. Product Specifics Color: Black Reflective Defined Color: Black Flat Protection: Tread and Sidewall ISO Diameter: 622 Road 29" ISO Width (mm): 53 Labeled Size: 29 x 2. 15 Tire Bead: