Continental grand prix road bike tyrethe name grand prix has become a brand of its own in cycling circles worldwide this is the original tyre from which the famous gp4000 s ii originated the grand prix now sits below the gp 4000 s ii in the range at a different price point offering a 180 tpi casing poly x anti puncture technology and a blackchili compound all of these components ensure that cyclists using the grand prix can be sure of race winning technology features the classic continenta