My first tire blow-out found me
Northbound on I75 just outside Tifton Ga we had a rear curbside trailer tire detonated with a load bang and lot's of rubber flying out behind our trailer. The H-rated Sumitomo 17.5 tires were just ov...
Forum Discussion
pcm1959 wrote:
I don't know for sure, but I'm just throwing this out there for thought. I was under the impression that Goodyear recommended max pressure for trailer tires regardless of weight for travel over 65mph.
I have a 15200 lb fiver with 8k axles with G114 17.5 tires and I keep them cold inflated to 115psi which is well over the psi needed for the weight on each axle.
They seem to run warm even at that speed so I would imagine the lower the pressure the hotter it runs.
PCM1959 at 115psi do you have any concern about running the tires so hard as to create a damaging rough ride for your trailer?
According to the Sumitomo website inflation chart they make the following statement.
"When speeds are constantly above 70 m.p.h., it is recommended to use maximum air pressure for good wear and performance."
I rarely am ever over 70 mph but routinely in the 66-68mph range however I too am going to run my pressure's a little higher.
To everyone else running 17.5 H-rated tires on fifthwheel's in the 16K lb weight range what air pressure are you running in your tires.
