If any modern superbike demands that all performance-hungry motorcyclists should stand up and salute as it roars by, it’s Ducati’s extraordinary V4 missile the Desmosedici RR. Not that you’re ever likely to see one of these stunningly exotic MotoGP replicas in the local high street any time soon. A bike costing more than £40,000, its painstakingly designed and constructed chrome-moly tubular steel frame is both lighter and 80 per cent more torsionally stiff than the 1098’s equivalent