How are white sidewall tyres made?
Original white sidewall tyres are made by placing a piece of white rubber of desired width into the tyre mould and vulcanising it in during the production phase. In this way the white rubber reaches the tyre carcass. Another possibility is to vulcansie it on to the finished tyre after production. This makes it possible to equip modern cars with white sidewall tyres too. Of course the tyre profile must be at least 55%.