Vittoria corsa g tubular road tyrethe future of road tyres is here using graphene a revolutionary substance thats only 1 atom thick but 200 times harder than steel and the lightest material known to man the already excellent corsa has been improved in terms of speed grip and durability the corsa g makes no sacrifices when tested against the standard corsa the corsa g was found to have 19 less rolling resistance its intelligent tyre system its ensures that you are fully equipped f