Reply
 
Thread Tools Display Modes
Old 06-06-2016, 02:59 PM   #11
Commercial Member
 
Join Date: Jul 2013
Location: Akron, Ohio
Posts: 1,136
Quote:
Originally Posted by Aspenmeadow View Post
I am little confused about tire pressure for my new MBS 2401 R, which is likely the same on all Continental tired MBSs. I seem to right at gross weight most of the time, and do not tow anything or mount anything on the hitch.

I would like to hear what other member are using and the results of that pressure.

It would help if we know the inflation suggestion as seen on the Tire Certification Label (Placard). This label also has the complete tire size including Load Rating for your specific vehicle.

Have you run across a scale? What are your actual F & R axle weights?
__________________

__________________
.
I write a blog on RV tire application and safety and give seminars on tires at RV events across the US. 40 years experience as tire design & quality engineer for major tire mfg. Freelander 23QB on Chevy chassis is my RV
RV Tire Safety Blog
Tireman9 is offline   Reply With Quote
Old 06-06-2016, 03:30 PM   #12
Senior Member
 
Join Date: May 2014
Posts: 534
I tracked down a tire loading chart for light truck tires. This chart is from Goodyear, but tires of a given size, speed and load rating all have the same load values.
https://www.goodyeartrucktires.com/p...dinflation.pdf
The chart specifies tire pressures based on axle load and single vs. dual wheels.

I also took my Solera to a scale to get an accurate value for the axles.

Based on this, the door sticker was pretty close to right. I think there were minor differences, but the recommended pressure for all of the tires fell between 60 and 65 psi.

Dave
__________________

__________________
2015 Solera 24R
2014 Mercedes Chassis
DaveJordan is offline   Reply With Quote
Old 06-06-2016, 04:33 PM   #13
Member
 
Join Date: May 2016
Location: Chiloquin, OR (near Crater Lake)
Posts: 52
Tireman9, I have only driven the MH home from the dealer, which was empty, so didn't stop at scales. I am going out later this week and I will weight it then.

The Forest River placard showa GVWR at 11,030 pounds. Front at 4410 and rear duals at 7020, recommend a tire pressure of 61 pounds all around. There is an unknown source placard that shows a cargo and passenger limit of 882 pounds. That is very light! My wife, four dogs and myself comes to 425 without clothes. Adding water weights and fuel plus two days of groceries, I am close to gross weight. No room for BBQ, chairs and fishing tackle or tools. My 2004 Rialta could do better than that by a thousand pounds. I never considered that factor. I did ask, but the salesman said "You can't overload these things." RIGHT! I guess that I will just have to live with that. FR should have been more explicit about this limitation.

It looks like I will use a pressure of 61-65 pounds.
__________________
Aspenmeadow is offline   Reply With Quote
Old 06-06-2016, 04:41 PM   #14
Commercial Member
 
Join Date: Jul 2013
Location: Akron, Ohio
Posts: 1,136
Quote:
Originally Posted by Aspenmeadow View Post
Tireman9, I have only driven the MH home from the dealer, which was empty, so didn't stop at scales. I am going out later this week and I will weight it then.

The Forest River placard showa GVWR at 11,030 pounds. Front at 4410 and rear duals at 7020, recommend a tire pressure of 61 pounds all around. There is an unknown source placard that shows a cargo and passenger limit of 882 pounds. That is very light! My wife, four dogs and myself comes to 425 without clothes. Adding water weights and fuel plus two days of groceries, I am close to gross weight. No room for BBQ, chairs and fishing tackle or tools. My 2004 Rialta could do better than that by a thousand pounds. I never considered that factor. I did ask, but the salesman said "You can't overload these things." RIGHT! I guess that I will just have to live with that. FR should have been more explicit about this limitation.

It looks like I will use a pressure of 61-65 pounds.
Re salesman. Have had similar experience. They seem to promise anything to make the sale. If you are not boondocking you might save some weight by not carrying a lot of water around.
__________________
.
I write a blog on RV tire application and safety and give seminars on tires at RV events across the US. 40 years experience as tire design & quality engineer for major tire mfg. Freelander 23QB on Chevy chassis is my RV
RV Tire Safety Blog
Tireman9 is offline   Reply With Quote
Old 06-12-2016, 05:52 PM   #15
Member
 
Join Date: Oct 2014
Posts: 32
Has anyone ever received an official response from Forest River Reps? I have a 2015 2401R. I also have a door placard stating 61 psi all around and have Continental Tires.
Every dealer says something different, including RV Solutions (80 PSI), Tire Discount (80 PSI) and Mercedes Benz (70-80 PSI)??? It's driving me crazy that there is no official stance that collaborates the door sticker.
__________________
nicktano is offline   Reply With Quote
Old 06-12-2016, 05:57 PM   #16
Member
 
Join Date: May 2016
Location: Chiloquin, OR (near Crater Lake)
Posts: 52
I stopped at my dealer yesterday and was told "...anywhere between 69 and 80". Why the 61 pound sticker on my door?
__________________
Aspenmeadow is offline   Reply With Quote
Old 06-12-2016, 06:49 PM   #17
Commercial Member
 
Join Date: Jul 2013
Location: Akron, Ohio
Posts: 1,136
Quote:
Originally Posted by Aspenmeadow View Post
I stopped at my dealer yesterday and was told "...anywhere between 69 and 80". Why the 61 pound sticker on my door?

61 sounds like a conversion from European kpa pressure for European design tire. Nothins wrong with that. The load capacity of your tires must be equal or greater than the GAWR by regulation.

Sounds like your dealer is not much more than order takers. Maybe they worked at Home Depot last week selling lumber

I would drop FR a note advising them that their "dealer" is giving out confusing and potentially incorrect and maybe even unsafe information if the dealer doesn't know how to read a certification label.
__________________
.
I write a blog on RV tire application and safety and give seminars on tires at RV events across the US. 40 years experience as tire design & quality engineer for major tire mfg. Freelander 23QB on Chevy chassis is my RV
RV Tire Safety Blog
Tireman9 is offline   Reply With Quote
Old 06-12-2016, 11:01 PM   #18
Senior Member
 
Join Date: May 2014
Posts: 534
As I mentioned a couple of posts up on this page, optimum tire pressures are determined by the tire type, the load, and whether the wheels are singles or doubles. I even posted a link to the Goodyear chart which provides specific details for each tire size and rating. Here's the link again:

https://www.goodyeartrucktires.com/p...dinflation.pdf

As near as I have been able to determine, the recommended pressures are NOT affected by the brand of the tire - just by the size and load ratings as established by the government.

So...go weigh your rig then look up your tire size and wheel loads in the charts linked above - I think you'll come out pretty close to the 61 lbs recommended on the sticker.

Dave
__________________
2015 Solera 24R
2014 Mercedes Chassis
DaveJordan is offline   Reply With Quote
Old 06-14-2016, 02:55 AM   #19
Member
 
Join Date: Oct 2014
Posts: 32
Thanks

Thank you for the advice. I plan to contact Forest River in the next week or two and see what they say. Feels like 61 - 65 makes the most sense. Would like to weigh the rig. Is it a free service or about what would it cost? Thanks again.
__________________
nicktano is offline   Reply With Quote
Old 06-14-2016, 07:18 AM   #20
Senior Member
 
Loefflerh's Avatar
 
Join Date: Feb 2011
Location: Naples Fl
Posts: 347
What about shifting weights - roads not level, going around a curve, bumps in the road?
I stay with 80psi!
__________________

__________________
Loefflerh is offline   Reply With Quote
Reply

Tags
pressure, tire

Thread Tools
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



» Virginia Campgrounds

Reviews provided by




ForestRiverForums.com is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 01:25 AM.