MICHELINR PRO4 Service Course. The MICHELIN PRO4 Service Course delivers the best trade off between sports performance and long tire life. The achievement of the engineers is to have simultaneously enhanced its speed, safety, agility and resistance. The MICHELIN PRO4 Service Course is not only safer but it is also an average 16 percent faster when cornering on wet road surfaces.These improvements were achieved thanks to its optimized dual compound technology which features: Wider lateral bands for optimal grip at all angles of lean. New compounds incorporating new elastomers and silica for extra grip at the shoulders.