I bought these New Zealand Firestone Tyres in 1979 and they still look like new. In 2014, I did a 500 mile trip with no problems. The only problem that I have is that the Tubes were also made in New Zealand, and they don't retain the air like the Olympic Tubes that were made in Australia. I have to add Air every 2 months to these NZ Tubes, whereas, I can leave the Olympic Tyres and Tubes that I have on another car 2 years between checking them. These Olympic Tyres and Tubes on my other car were fitted in 1973 and also look like new. ( We spell Tyres differently to you! )