The Grand Prix 4000 S II is the reference tyre in the road bike market and has gone through numerous stages of evolution. Our flagship tyre now gets a face lift. The discreet bead strip allows us to colour coordinate the tyre to match your bike perfectly without losing the BlackChili tread performance. The proven aspects of the 4000 S II remain unchanged. Vectran breaker for unsurpassed puncture protection. Blackchili compound for low rolling resistance and sensational grip. Handmade in Germany. Constructed of 3 plies, totalling 330 TPI. Weight: 225 grams.