Specialized's Purgatory Control 2Bliss tire has a large, supple casing to float over rock gardens, roots and every other trail obstacle you encounter. Monster traction in soft/loamy conditions comes in the form of squared, biting side knobs with wide, openly-spaced center knobs that also clean the muck as you roll on through. And, the Purgatory boasts Specialized's 2Bliss technology so you can run low pressure and charge rocky sections without worrying about flatting.
Tubeless ready tires are compatible with both tubeless-ready and standard rims. When used on a tubeless-ready rim with a special tubeless rim strip or rim tape, valves and sealant (sold separately), the tire and rim form an airtight chamber, allowing the tire to be inflated without a tube. This lets you run lower pressure for optimum comfort and control without fear of pinch flats. When used with a standard rim, the tire can be mounted and inflated with a tube.