The 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 just ask the riders from the famous rapha condor jlt team its the