The specialized tracer sport tyre 700x33c has a fast cx tread that covers all courses in any weather if you39re trying to beat a personal best or just doing some light exercise to enjoy the outdoors these tyres are guaranteed to give you maximum performance to complete any task the tracer sport has centre knobs that provide great traction and grip to get you around every bend and corner with ease this specialized tyre has siped shoulder knobs to get you throu