Something to consider when shopping for tires for your trailer:
- Many tires have
essentially no warranty, others maybe 12 months and some for years. In my opinion (IMO) the
length of time the tire company is willing to stand behind their
products is one way to judge the real quality of what they make. Which
would you consider a better deal: a hammer with a 30-day warranty for $5,
or one with a 10-year warranty for $10?
- Speed rating molded on
the tire sidewall to me indicates the manufacturer has made a real
effort to exceed the minimum performance requirements from DOT. IMO,
tires with a speed symbol are probably better than those without a speed
- Here is a chart to convert the speed symbol letter to a number.
The speed symbol letter is part of the service description which
comes right after the rim diameter in the tire size. Technically, an
"LT235/75R15 107/110 Q Load Range D" is a different tire
than an "LT235/75R15 Load Range D" -- with the 107/110 being a load
index for dual and single application and the letter Q being the speed symbol.
- I note that most LT tires made today have a speed rating,
but when applied to trailer application, some companies say to consider
75 mph as a max.
- I also have recently seen a few ST-type tires
now being manufactured with a speed symbol which IMO would make them
probably a better choice than tires without a speed symbol.
Subscribe to the weekly RVtravel.com newsletter or one of our other
newsletters about RVing. Great information and advice. Now in our 15th
year. Learn more or subscribe.