FAT TIRE/FAT BIKE | Snow Shoe 2XL the first bicycle tire with a width over 5 inches-available in 26×5.05. Inspired by the floating sensation of an actual snowshoe, the Snowshoe 2XL is currently the largest FatBike tire in the market. The exaggerated tread features aggressive knobs and deep patterns for increased traction and cornering, no matter what the tire pressure.