The 2012 Michelin PRO4 Service Course is a top-end road racing tire. This PRO4 is the direct descendant of the PRO3 Race, with substantial improvements. Now dual compound, the 4 has a harder compound in the center, reducing rolling resistance measurably; the shoulder incorporates new elastomers for increased grip, and has a wider contact patch, the second a benefit of the new, sharper profile. Along with the inherent flat resistance of the high-density nylon, the Service Course sports tough sidewalls for a very durable tire.
A very good road racing tire.