A versatile, fast rolling tyre that excels in loose-over-hard pack terrain. You're not stopping anytime soon Legendary tyre designer Frank Stacy provides another race-proven mountain bike tyre design in the XR2. The value-minded and super-versatile XR2 Comp offers outstanding quickness and cornering stability on hard-packed or loamy cross country courses. Due to supply chain issues, compatible parts may be substituted at any time without notice. Weights are based off pre-production products at time of publication. Weights may vary in final production.