Dial in for your best ride with casing and compound combos on Purgatory tires. When choosing a casing and compound, think about where and how you ride. Pick the GRID Casing for a light and supple ride, that still offers sidewall protection panels. If you need additional stability and durability, scale up to GRID Trail which adds bead-to-bead protection on top of the GRID base. When it comes to compounds, firmer rubber--like the T7--prioritizes rolling speed, and longevity, but still has excellent grip. Our T9 compound is a gummy, gravity compound with loads of stickiness, for the rider won't compromise on grip. Whatever trails you ride, the tactical tread pattern of Purgatory plus casing and compound options make it a great tire to level up your ride.