Keystone RV Forums - View Single Post - Always 80 lbs psi in 'E' tires, or go by GVWR?

**sourdough** · 10-08-2019, 08:31 AM

Since I'm waiting on my truck and have nothing better to do let me throw this out;

My Carlisle LRE tires run cooler at 80psi than my Trailer Kind LRDs did @65 psi. Of course the LRDs had considerable more weight on them as opposed to their max capacity vs the LREs. Stiffer sidewall? Less flexing? Not really apples to apples but just a thought.

I agree with John that running the LRE tire at 65psi vs the full inflation of 80psi should/will cause more flex thus more heat.....at least that was always my understanding. These are not passenger car radials.

10-08-2019, 08:31 AM	#42
sourdough Site Team Join Date: Feb 2014 Location: W. Texas Posts: 17,685	Since I'm waiting on my truck and have nothing better to do let me throw this out; My Carlisle LRE tires run cooler at 80psi than my Trailer Kind LRDs did @65 psi. Of course the LRDs had considerable more weight on them as opposed to their max capacity vs the LREs. Stiffer sidewall? Less flexing? Not really apples to apples but just a thought. I agree with John that running the LRE tire at 65psi vs the full inflation of 80psi should/will cause more flex thus more heat.....at least that was always my understanding. These are not passenger car radials. __________________ Danny and Susan, wife of 56 years 2019 Ram 3500 Laramie CC SWB SB 6.4 4x4 4.10 2020 Montana High Country 331RL