2011 Michelin Pro4 Service Course tires,110tpi casing
- By VeloNews.com
- Published Nov. 30, 2011

The Pro4 Service Course uses the same 110tpi casing as the Pro3, but with a new tread compound and shape. Photo: Caley Fretz

The Pro4 Service Course uses the same 110tpi casing as the Pro3, but with a new tread compound and shape. Photo: Caley Fretz