>flight hours are not relevant... how many >landings, how much taxiing... etc, etc.; how much abuse have the tires been >exposed to that would contribute to wear or failure. >Mark W ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Barring any major errors in my maintenance or flight logs, I installed the current tires in July of 2008 and have logged 316 landings since then. One could assume I've made the same number of takeoffs. As for taxiing, my airport has an 8000 foot runway although I never go all the way to the end for departure and generally land long. As for abuse, I always treat my tires very nice on landings, thank you. :-) The tires appear to have at least another 100 takeoffs and landing left in them. I'm running 500X5 retreads at 25 pounds of pressure although they have gotten as low as 15 pounds when checked at annual time one year. To date I've not experienced a single flat tire on the KR (470 hours) or the Tripacer (500 hours). Use quality tires, install them correctly, and treat them with kindness. Larry Flesner