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Old 05-30-2020, 06:44 AM   #1
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New Member Tire pressure

HI All,

Thanks for letting me join! I really found the forum as a great place to learn and share. I was a Dynamax owner and I would have been lost without the forum! I am now the proud owner of a Newmar Bay Star 3005! I know a lot more goes into answering tire pressure questions, but what I am looking for is a range the people are using on this chassis. I have the smaller f53 chassis and 6 tires. I just got my TPMS system moved over and all tires are approximately 85 PSI. Any insights would be much appreciated.

Thanks
2020 Bay Star 3005
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Old 05-30-2020, 09:35 AM   #2
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There are lots of posts on ideal tire pressures, but it depends on the weight of your Moho. You need to find a public scale and weigh your coach fully loaded and then google the maker of the tires to review the ideal pressure. In our case, we have a 2017 Baystar that had a weight of 6960 pounds on the steer axle and 14440 pounds on the duals of the drive axle. According to our Michelin chart, we maintain 82 psi in front and 85 psi in the rear tires.
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Old 05-30-2020, 10:56 AM   #3
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Thanks! Super helpful!
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Old 05-30-2020, 01:10 PM   #4
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hanla05- while weighing the axles is better than nothing, the more precise way is to weigh each wheel on a tire platform scale. Vendors do this as a service (yes, they charge like $15/wheel) at a lot of the larger RV rallies & conventions. Weigh the RV with full water & fuel & equipment load. This will give you your heaviest wheel load- add 10% as a safety factor & then look up the recommended inflation pressures on the tire manufactures tire chart for your make & tire size- it will show single & dual columns for respective inflation pressures.

On my present coach I carry 100 PSI in the front tires- Michelin XZA 365/70 R X 22.5 LR L & 90 PSI in the rear duals & tag- Michelin XZA 315/70 R X 22.5 LR L- those are some really big heavy - 24 ply tires!

Happy Trails
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Old 05-31-2020, 04:59 AM   #5
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Quote:
Originally Posted by hanla05 View Post
HI All,

Thanks for letting me join! I really found the forum as a great place to learn and share. I was a Dynamax owner and I would have been lost without the forum! I am now the proud owner of a Newmar Bay Star 3005! I know a lot more goes into answering tire pressure questions, but what I am looking for is a range the people are using on this chassis. I have the smaller f53 chassis and 6 tires. I just got my TPMS system moved over and all tires are approximately 85 PSI. Any insights would be much appreciated.

Thanks
2020 Bay Star 3005
Just for grins, what does the sticker(s) inside the MH show as the pressure to use? If like my Sport you may have one each from Ford and Newmar. Also, what size tires?
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Old 05-31-2020, 06:44 AM   #6
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I go by the tag inside from spartan/newmar as my tires are still same as 1st built but I do not have a BS..
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Old 06-01-2020, 07:38 PM   #7
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Welcome to the forum.
You will find answers for tire pressures and many others in this link.
Enjoy safe travels.
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