Fastest tyrethe corsa speed tubeless ready has been measured at 40 less rolling resistance compared to the same product without pristine graphene vittoria has done elaborate independent testing that clearly proves it is the fastest tire in the world lab tests have shown a 32 second speed advantage over the nearest competitor after 50 kilometers graphene explainedgraphene is a revolutionary material in the form of a very thin nearly transparent sheet of pure carbon in its extreme form it