Originally Posted by RyanNREMTP
Just to change the subject a bit.
To make sure the NPT can withstand long-term abuse, it was put through military-grade testing. Engineers shot test tires with 50-caliber rounds from an AK-47 and then subjected them to 5,000 hours of off-roading. On another outing that involved crossing a train tracks, a rail spike punctured the tread band of an NPT, but the rider kept going on it for more than 1,000 miles.
A 50 cal AK-47?
That will never sell for anything beyond an ATV. It would make sense, but you'd put all the tire manufacturers out of business. Imagine if you only had to buy one set of tires for your car ever.