Tire went flat in the driveay. Damage?
I came out this morning and the left tire on my utility trailer was dead flat. Just came back from a 260 mile round trip, and it was up and fine when I went to bed last night. The valve stem failed...
Forum Discussion
valhalla360 wrote:CapriRacer wrote:valhalla360 wrote:
.... For starters, I would stop buying antique tires built up with multiple cotton plys. ;) .....
I'm pretty sure only a few people got that joke!
Probably. Heck even the letter grades are outdated. They give the load ratings in pounds in the modern world and that's what counts.
I think you mean Load Index. The load rating in pounds has been required for over 50 years - when tires came under federal regulation about 1970. Load Ranges were in effect at that time.
And this is where it gets complicated. The Europeans came up with the idea of Load Index, but they still use Ply Rating, not Load Ranges. It's complicated because most tire manufacturers use all 3 on the sidewall (with some exceptions.)
Not to mention that it is also a federal requirement to indicate what the tire is made out of (aside from rubber), so the sidewall will typically say something like: "Sidewall: 2 plies polyester Tread: 2 plies polyester, 2 plies steel, 2 plies polyamide"
