I purchased front and rear Pirelli Diablo Supercorsa V4s in plenty of time for two track days. They only arrived one week before the track day so didn’t have much time to get them fitted and scrubbed in. On i election, the rear tyre is defective. I contact giga tyre using online form asking for a call back to discuss, and no one got back to me. At the track day now, and nervous to lean on the tyre because of the defect. Not what you expect when you pay £440!! Will not be using again. Stay clear of I were you