Reply
 
Thread Tools Search this Thread Display Modes
 
Old 10-09-2014, 09:21 PM   #29
Rivet Master
 
dkottum's Avatar
 
2012 25' Flying Cloud
Battle Lake , Minnesota
Join Date: Jun 2009
Posts: 7,716
Quote:
Originally Posted by slowmover View Post
Lateral stability is the top reason . . . not causing internal tire damage in turns is the lasting problem. This has been discussed on this forum and elsewhere. The Load & Pressure Tables do not apply to trailer tires.
First Google gave a manufacturer's load and pressure table for trailer tires:

Trailer Tire Load/Inflation Chart | Maxxis USA
__________________

__________________
Doug and Cheryl
2012 FC RB, Michelin 16, ProPride 1400
2016 Ram 1500 Laramie Crew Cab 4X4 Ecodiesel 3.92 axles

The Truth is More Important Than the Facts
dkottum is offline   Reply With Quote
Old 10-09-2014, 10:04 PM   #30
Rivet Master
 
Moflash's Avatar
 
2007 28' International CCD
Springfield , Missouri
Join Date: Apr 2011
Posts: 1,167
Quote:
Originally Posted by slowmover View Post
Sure. Try the TT manufacturers. Ask either of the tire engineers who post here. The problem in upsizing to use 16's is that load range is hard to match




Sent from my iPhone using Airstream Forums

Huh???


Sent from my iPhone using Airstream Forums
__________________

__________________
Moflash is online now   Reply With Quote
Old 10-10-2014, 03:41 AM   #31
Vintage Kin
 
slowmover's Avatar
 
Fort Worth , Texas
Join Date: Nov 2006
Posts: 7,602
Images: 1
Quote:
Originally Posted by dkottum View Post
First Google gave a manufacturer's load and pressure table for trailer tires:



Trailer Tire Load/Inflation Chart | Maxxis USA

Good luck. Leaving the TT parked in such a way as to leave the tires twisted is also hard on the torsion axles. Be careful as there are effects you are not considering. Leave the TT tires alone and work on the TV loading per wheel. Get that balance as good as can be and then apply the chart for a baseline.


Sent from my iPhone using Airstream Forums
__________________
1990 35' Silver Streak Sterling; 9k GVWR.
2004 DODGE Cummins 305/555; 6-manual; 9k GVWR.
Hensley Arrow. 9-cpm solo, 15-cpm towing
Sold: Silver Streak Model 3411
slowmover is offline   Reply With Quote
Old 10-10-2014, 06:29 AM   #32
CapriRacer
 
CapriRacer's Avatar
 
I'm in the , US
Join Date: Sep 2012
Posts: 624
My recommendation is that the tire should be inflated such that its load carrying capacity is at least 115% of the maximum load.
__________________
CapriRacer is offline   Reply With Quote
Old 10-10-2014, 07:08 AM   #33
Rivet Master
 
dznf0g's Avatar

 
2007 30' Classic
Oswego , Illinois
Join Date: Jul 2010
Posts: 9,409
Images: 5
Quote:
Originally Posted by CapriRacer View Post
My recommendation is that the tire should be inflated such that its load carrying capacity is at least 115% of the maximum load.
This is good clear advice! Now we need no further discussion....right?
__________________
-Rich-

"If the women don't find you handsome, they should at least find you handy." - Red Green
dznf0g is offline   Reply With Quote
Old 10-10-2014, 07:57 AM   #34
Rivet Master
 
dkottum's Avatar
 
2012 25' Flying Cloud
Battle Lake , Minnesota
Join Date: Jun 2009
Posts: 7,716
Quote:
Originally Posted by CapriRacer View Post
My recommendation is that the tire should be inflated such that its load carrying capacity is at least 115% of the maximum load.
Thanks CapriRacer.

The chart for a 225/75R x 16 LT gives 2335# carrying capacity at 65 psi. Our heaviest weight ever (last spring) at 6700 on four tires puts us at 140% of this load. We are somewhat lighter today ready to travel with gear placed to balance the load as best I can.
__________________
Doug and Cheryl
2012 FC RB, Michelin 16, ProPride 1400
2016 Ram 1500 Laramie Crew Cab 4X4 Ecodiesel 3.92 axles

The Truth is More Important Than the Facts
dkottum is offline   Reply With Quote
Old 10-10-2014, 09:13 AM   #35
Rivet Master
 
AnnArborBob's Avatar
 
2014 27' FB Eddie Bauer
Chelsea , Michigan
Join Date: May 2010
Posts: 1,769
Images: 12
Quote:
Originally Posted by dkottum View Post
Thanks CapriRacer.

The chart for a 225/75R x 16 LT gives 2335# carrying capacity at 65 psi. Our heaviest weight ever (last spring) at 6700 on four tires puts us at 140% of this load. We are somewhat lighter today ready to travel with gear placed to balance the load as best I can.
Doug, when you are looking at your trailer's weight per tire, unless you weighed each tire separately to arrive at the 6,700 lbs figure, make sure to account for the part of the trailer's weight that is carried by the hitch. In your case, a 25' FC has a tongue weight of about 835 lbs. So if your total trailer weight was 6,700 lbs you could subtract 800lbs or so to get the actual weight carried by the tires (5,900 lbs in this example or 1,465 lbs per tire.) And, once again, unless you weigh each tire separately you still need to bake in a margin for uneven trailer loading. So, your 140% of capacity is likely more like 165% of capacity so you are quite well covered at 65 psi.
__________________
Bob Martel
WBCCI# 5766
AnnArborBob is offline   Reply With Quote
Old 10-10-2014, 09:30 AM   #36
Rivet Master
 
SteveH's Avatar
 
2005 39' Land Yacht 390 XL 396
Common Sense , Texas
Join Date: Sep 2007
Posts: 5,311
Just my opinion here, but I always compute needed tire capacity based on the GVW of the trailer to be on the safe side. And then there's the transient weights that occur when on the road like around curves, and bumps. Better to be on the safe side, but again, just my opinion.
__________________
Regards,
Steve
SteveH is offline   Reply With Quote
Old 10-10-2014, 09:36 AM   #37
Rivet Master
 
dkottum's Avatar
 
2012 25' Flying Cloud
Battle Lake , Minnesota
Join Date: Jun 2009
Posts: 7,716
Thanks Bob, 6700# was trailer weight hitched and weight distribution applied. We were really loaded after a winter's shopping by one of the world's great bargain hunters including H F Coors' nice heavy dinnerware/serving sets for family, and full water.

Steve, that load put us at or a little above GVW of the trailer if we add approximate hitch weight back in.
__________________
Doug and Cheryl
2012 FC RB, Michelin 16, ProPride 1400
2016 Ram 1500 Laramie Crew Cab 4X4 Ecodiesel 3.92 axles

The Truth is More Important Than the Facts
dkottum is offline   Reply With Quote
Old 10-10-2014, 09:42 AM   #38
Rivet Master
 
dznf0g's Avatar

 
2007 30' Classic
Oswego , Illinois
Join Date: Jul 2010
Posts: 9,409
Images: 5
I'm with ya, Steve. I like more margin for variables, like differences between each tire, when I run with full tanks or more gear....etc.

I am well over the minimum 115% formula, but I have seen no difference in ride quality clues at 75psi as opposed to 65psi.
__________________
-Rich-

"If the women don't find you handsome, they should at least find you handy." - Red Green
dznf0g is offline   Reply With Quote
Old 10-10-2014, 09:45 AM   #39
Rivet Master
 
dkottum's Avatar
 
2012 25' Flying Cloud
Battle Lake , Minnesota
Join Date: Jun 2009
Posts: 7,716
Remember you guys have 30' Classics, we have a 25' FC with of GVW 7300.
__________________
Doug and Cheryl
2012 FC RB, Michelin 16, ProPride 1400
2016 Ram 1500 Laramie Crew Cab 4X4 Ecodiesel 3.92 axles

The Truth is More Important Than the Facts
dkottum is offline   Reply With Quote
Old 10-10-2014, 09:49 AM   #40
Rivet Master
 
dznf0g's Avatar

 
2007 30' Classic
Oswego , Illinois
Join Date: Jul 2010
Posts: 9,409
Images: 5
Oh, I understand Doug. It is all relative to actual axle weights. My discussion was just to convey my desire to utilize more than the MINIMUM 115%. Utilizing a single weight ticket and assuming that as a baseline over many years is a dangerous way to do it. RVs almos always gain weight over time, not to mention trip to trip variables.
__________________
-Rich-

"If the women don't find you handsome, they should at least find you handy." - Red Green
dznf0g is offline   Reply With Quote
Old 10-10-2014, 10:40 AM   #41
Rivet Master
 
dkottum's Avatar
 
2012 25' Flying Cloud
Battle Lake , Minnesota
Join Date: Jun 2009
Posts: 7,716
No problem Rich. Last weighing was 6 months ago, we live at a lake in Minnesota and seldom travel in summer. Winter is our time to use the Airstream and it gathers "stuff" as we go about, gets completely unloaded each season. Am careful with weights in the trailer, and where placed.
__________________
Doug and Cheryl
2012 FC RB, Michelin 16, ProPride 1400
2016 Ram 1500 Laramie Crew Cab 4X4 Ecodiesel 3.92 axles

The Truth is More Important Than the Facts
dkottum is offline   Reply With Quote
Old 10-10-2014, 10:57 AM   #42
Rivet Master
 
SteveH's Avatar
 
2005 39' Land Yacht 390 XL 396
Common Sense , Texas
Join Date: Sep 2007
Posts: 5,311
Our manufacturer's stated gross is actually 11,500, and when you add 15% to that, 13,225. The good news is when you figure six tires, it's not but 2200 lbs which is less than a 31 ft Classic. I do worry about tires on both vehicles because our gross can easily reach 19K with full tanks.
__________________

__________________
Regards,
Steve
SteveH is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Michelin LTX M/S versus Michelin LTX M/S 2 - Which Would You Choose? doutterson Tires 40 10-23-2016 10:08 PM
Tire pressure with T03s and Michelin LTX dsaxon22 Tires 27 02-04-2014 07:11 AM
Do you tow in "use" or "store"? xo1rider 2011 - 2015 International 17 11-06-2011 10:20 AM
Newbie electrical questions -- "Use" and "Store"? jjboone101 Batteries, Univolts, Converters & Inverters 8 08-27-2009 10:44 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 01:11 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.