Specialized's Tracer Pro 2Bliss Ready Tire is a great all-around tread for riding, training, and racing. Its well-spaced, low-profile knobs zip over hardpack and still have enough bite to provide outstanding braking and sensational cornering grip. The Tracer Pro's tubeless capability means you can ride with lower pressures for increased grip and cushion as well as less concern for pinch flats.
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.