We have 12,000 miles on ours already from our 2018 Montana 3121RL we bought new 2-15-2018.
I keep them at 110 per tire, check them often for any signs of defects or rocks in the treads and check them before we leave for every trip also when we leave our destination to come home. We carry a compressor with us to always keep them at 110PSI hot or cold no issues.
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2016 F350FX4 King Ranch CC SB 6.7PSD
2018 Keystone Montana 3121RL
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