....
When I was in Africa Landrovers and Toyotas all had the spare tyre on the bonnet as it was more convenient for it to be there. Never had an issue with spare starting to look past its prime despite the severe weather.
Has the quality not tyres become worse than what it was years ago when tyres seemed to last years in severe weather before showing any signs of deterioration?
The problem with holding up one example of where a tyre
apparently has no degradation, is that same tyre might be damaged in ways that you cannot see without a technical inspection.
If you had brought that exact tyre to the UK it might have degraded more because of the difference of the environmental pollutants we have here.
It's also the case that even though a tyre manufacturer may sell what appears to be the make and model of tyre in different continents, the actual materials used may be altered to suit the local situation.
Its difficult to quantify what "Quality" is defined by, but in the case of tyres it often comes down to a set of trade offs. for example The old Michelen X tyres of the 1960's were renown for long distances, but the trade off was the grip levels were not class leading.
As technology and materials have advanced, tyre manufacturers have had more precise methods of evaluating tyre dynamics, and that has potentially allowed them to revise tyre designs to reduce the wasteful over engineering that might have previously occurred.
I believe that the research and development of tyres has led to improved grip levels and of course to meet the demands of much higher performance vehicle's we have now -a-days, but the trade off is how quickly they wear, especially when tyres are designed for seasonal usage.
I agree tyres are different to what they used to be, but I can't really agree they are of lesser quality.