The tracer pro 700c 2bliss ready cx tyre from specialized is a cyclocross tyre with a fast all round tread ideal for racing the tread covers all courses with centre knobs to provide ample traction and siped shoulder knobs that adapt to hard and loose ground the tracer is lightweight making it easy to accelerate and with 2bliss ready design youll be able to run lower pressures for increased comfort traction and control through slippery corners available in 700 x 33c in black only