Vittoria rubino pro g road tyrevittoria describes the rubino pro g as their best all round tyre suitable for both training and racing using graphene a revolutionary substance thats only 1 atom thick but 200 times harder than steel and the lightest material known to man the rubino pro g has it alla mix of three compounds gives the best combination of speed grip and suppleness whilst the slightly thicker tread gives extra puncture protection the rubino pro g is suitable for all weath