The best model of the Special series. The crown of the tread is separated by a groove from the tread shoulder. The groove expels water from the tire track and together with the tire tread compound ensures excellent grip on wet pavement. Wide tire tread extended over the side wall and double treadís compound composition contribute to the highest puncture resistance. All these qualities combined with low tire weight ear marks this model for the most demanding road and stage races. Density of threads underneath the tread 305 TPI. 700 x 21 315 grams.