TT Air pressure
I upgraded my TT tires from some Chinese? brand 205/75/14 LRC to Goodyear Endurance 205/75/R14 LRD. Trailer states 32lbs tire pressure, new tires have cold pressure 65lbs. Di have to stay with what th...
Forum Discussion
op wrote:
But how low is too low?? Is there an intermediate sweet spot? I would be interested to see if anyone has any authoritative data on that issue.
Having five commercial trailers on the road with 28 tires on the ground 24/7 for over 11 years I've found out the hard way derating heavy tires like a E to 65 psi (D to 50 psi) did in fact lead to hotter running tires and premature failure down the road.
Yeah my truck tire dealer warned me not to derate them that much but being young and dumb and thinking he didn't know what he was talking about...I found out he was correct.
I don't over tire a trailer now which allows me to use max pressures plus using LT tires on all my trailers I don't have tire issues anymore.
Lots of tire blogs out here on towable's (trailers) all saying basically the same thing.....
I like this one for those that have over tired their trailer.
rvsafety.com
Tire Load and Inflation Ratings
Note: Towable – Travel Trailer/ 5th Wheel owners Due to the severe use conditions experienced by tires when axles are very close together – tire industry experts recommend maximum (sidewall) inflation pressure for towable tires unless this causes a sever over-inflation situation (20psi+), often referred to as the ‘basketball effect’. If this is your situation allow a 10 – 15psi safety margin above the minimum required inflation pressure.
