Bontrager XR2 Comp Mountain Bike Tyre is a cross country tyre designed for speed & stability on hard-packed or loamy cross-country courses. The XR2 Comp tyre also works well for summer trail riding. The XR2 has been created by Bontrager for legendary tyre designer Frank Stacy. It’s available in 26”, 27.5” & 29” variations to fit the full range of mountain bike wheel sizes. Features A versatile cross country trail tyre that excels in loose-over-hardpack & firm conditions Fast rolling with consistent, predictable traction for a variety of trail conditions