Reply
 
Thread Tools Search this Thread Display Modes
 
Old 07-09-2020, 07:30 PM   #1
Weekend Camper
 
Join Date: Apr 2018
Location: Illinois
Posts: 51
Wheel PSI rating?

So, I am taking the plunge and upgrading from the old castle rock C rated and, for better stability, going with Maxxis D rated 65 PSI tires. The concern I have is the PSI rating for the existing steel rims I have. I can find nothing regarding max PSI on the wheels unless its stamped internally somewhere. The only thing I find is "made in china - max load 1780" and no manufacturer info.

I have read that the limiting factor on the rims PSI is the valve stem. My plan is to have steel valve stems at installation. Good plan? or is there more investigating I should be doing?

Thank you!!
__________________
Jim
16 - 211RD
2009 Silverado 1500
xltjim is offline   Reply With Quote
Old 07-09-2020, 07:34 PM   #2
Site Team
 
Join Date: Dec 2007
Location: WI.
Posts: 8,046
What is the recommended PSI on your present tires?
__________________
2008 Cruiser CF26RK
2013 Ford Eco-Boost
Heavy duty payload - Max tow
Lloyd is offline   Reply With Quote
Old 07-09-2020, 07:42 PM   #3
Weekend Camper
 
Join Date: Apr 2018
Location: Illinois
Posts: 51
Hi Lloyd,

50 PSI on current
__________________
Jim
16 - 211RD
2009 Silverado 1500
xltjim is offline   Reply With Quote
Old 07-09-2020, 07:51 PM   #4
Family Vacation Member
 
Join Date: Apr 2015
Location: S. Illinois (means South of I-80)
Posts: 132
Those are the tires I have and there was a codestamped on my wheels. I believe 65 was the max. I keep mine inflated to 62. They do go above especially when it is this hot. But I have not had any problems. According to my tire monitors I do not believe they have exceeded 70 psi @110 degrees f. I also went up 1 level from c to d I believe. I have been running them for 3 years and they still look great, very little wear. Tomorrow will probably be the warmest I have traveled with them.
__________________
2015 Sunset Trail 270bh
2011 Ford f150 Eco Beast 3.73-max tow-max payload, man mirrors

Screen Name = half Labrador, half Beagle and full of attitude.
Labbie is offline   Reply With Quote
Old 07-09-2020, 07:55 PM   #5
Site Team
 
Join Date: Dec 2007
Location: WI.
Posts: 8,046
Jim, if you have any doubts about it, Ask the dealer where you are getting the tires. Maybe give etrailer a call also.
You don't have to run max pressure if your trailer isn't that heavy.

My tires are rated for 80 psi. I've never run them that high. Trailer isn't heavy enough.

If your rims are in good shape and not pitted badly, I guess it wouldn't bother me to run 60 to 65 psi in them, but that has to be your call.
Maybe when you get one off, you might find something stamped on the inside You will be able to look the outside over a lot better also.
__________________
2008 Cruiser CF26RK
2013 Ford Eco-Boost
Heavy duty payload - Max tow
Lloyd is offline   Reply With Quote
Old 07-09-2020, 08:13 PM   #6
Weekend Camper
 
Join Date: Apr 2018
Location: Illinois
Posts: 51
Thanks guys, and yes I will check with the installer. Kind of interesting.

I did find this on etrailer site -

"Since wheels will be able to withstand the psi rating of any of the tires that are meant to fit it you will need to look at the valve stem as that is the deciding factor.

If your valve stem has the rubber all the way up to the threads, like part # AM20903, then it will be rated around 65 psi. If there is some reinforcement between the rubber and the threads, like part # AM20904 or # AM20907, then your valve stem can be rated between 80 and 100 psi. The only valve stems that are rated for more than 100 psi are metal ones like part # AM20906. If your wheels do not have metal valve stems then they will not be able to hold the pressure of 110 psi that you require."

Henry G. 7/2/2020
So if I upgrade the valve stems on my 15 inch metal boat tralier wheels I can put 110 psi tires on them? 84833

REPLY

Reply from Chris R. 7/7/2020
Correct - that shouldn't be a problem at all. You'll want to add metal valve stems like # AM20906 .
__________________
Jim
16 - 211RD
2009 Silverado 1500
xltjim is offline   Reply With Quote
Old 07-09-2020, 08:34 PM   #7
Family Vacation Member
 
Join Date: Apr 2015
Location: S. Illinois (means South of I-80)
Posts: 132
I know they added metal stems to mine.
__________________
2015 Sunset Trail 270bh
2011 Ford f150 Eco Beast 3.73-max tow-max payload, man mirrors

Screen Name = half Labrador, half Beagle and full of attitude.
Labbie is offline   Reply With Quote
Old 07-09-2020, 08:45 PM   #8
Site Team
 
Join Date: Jun 2015
Location: mo
Posts: 942
I would run them at the same PSI you have in the old tires. If you add a higher PSI the trailer will ride worse than it does now. Remember that the tires are part of the suspension. I know some folks that lower the PSI in there truck tires when empty for a "softer" ride the air up to haul a load.
__________________
2005 Cruiser 29CK
2008 GMC 2500hd 4x4
Crew cab Long bed 6.0 gas
4.10 gear ratio
dagst1 is offline   Reply With Quote
Old 07-10-2020, 06:46 AM   #9
Site Team
 
Join Date: Dec 2007
Location: WI.
Posts: 8,046
Quote:
Originally Posted by dagst1 View Post
I know some folks that lower the PSI in there truck tires when empty for a "softer" ride then air up to haul a load.

That would be me.
__________________
2008 Cruiser CF26RK
2013 Ford Eco-Boost
Heavy duty payload - Max tow
Lloyd is offline   Reply With Quote
Old 07-10-2020, 08:49 AM   #10
Full Time Camper
 
harley's Avatar
 
Join Date: Aug 2012
Location: Belle River , Ontario
Posts: 1,725
Just put endurance on mine , went from 50 lb c tires to 65lb d tires, run 60 and no big deal .
__________________


It was a rainy few days at Algonquin Prov park...tarps kept us dry.
Wayne --Belle River (Windsor), Ontario
2013 Sunset Trail Reserve 25RB..
2015 White Chev Silverado 2500HD 4x4 (6.0 l gasser)
2003 Mountain Star 890SBRX Truck Camper
harley is offline   Reply With Quote
Old 07-14-2020, 09:59 AM   #11
Weekend Camper
 
Join Date: Apr 2018
Location: Illinois
Posts: 51
As an update, I got the Maxxis D tires installed today at discount tire. Mounted and balanced with high pressure valve stems right at the store. In/out in 25 minutes. There was no PSI stamp found anywhere on or in the rim. They did mention that they do this all the time (no kidding they are a tire installer). Can't really say I notice much of a difference yet in towing but didn't really expect to. I believe I will run at the 65psi first to see how it does. The plan was to get an 8 ply tire at a higher load range for better safety/stability margin.
I do notice my wallet a little lighter LOL. Thanks for the input you have provided. Regards.
__________________
Jim
16 - 211RD
2009 Silverado 1500
xltjim is offline   Reply With Quote
Old 08-02-2020, 07:51 PM   #12
Weekend Camper
 
TexSon's Avatar
 
Join Date: Aug 2016
Location: TX
Posts: 40
Be very careful running the tires at less than the recommended pressure for tires. Lower pressure is what causes them to blow. Also, you may want to think about going from 8 to 10 ply tires. They run at 80 psi, but can haul more weight, which is also advised. It is better to use a tire made for a higher carrying weight than one underweight. The cost is not that much more and your piece of mind will be improved.
__________________
TexSon
2010 Zinger ZT29DS
Waiting on a 2020 Silverado HD3500 Duramax (still!)
TexSon is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Crossroads RV or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 03:58 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
×