Originally Posted by
Marco
When I was working long hours I calculated that in view of the cost of my precious free time it was actually cheaper to fit a new inner-tube, (particularly if I could buy them cheap/bulk), rather than repair a puncture. This was also exaggerated by the fact that modern puncture repair kits didn't seem to do what they were supposed to do (and used to do).
A change of circumstances, and the purchase of a Park Tools puncture repair kit, has swung the balance the other way. On the subject of tyres, a front gets very little wear and although I don't have accurate annual mileage figures, it is only since my operation that I am doing clearly over 1000 miles a years (and this is spread across two bikes). Each to their own, but I tend to swap the front tyre to the back wheel after three years, preferring to have better grip on the front.
It is also worth mentioning that matured tyres wear better. Back in the early 1980s, Pro bike teams used to mature tyres in dark cellars, (a bit like cheese, but with a different smell), for 2-3 years before use as it improved the puncture resistance and wear. As I tend to buy tyres when they are cheap, rather than when I need them, I end up keeping them for up to 5 years before they get fitted to a wheel.