RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Newmar Owner's Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 05-03-2014, 07:06 PM   #1
Senior Member
 
Ron & Kerrie's Avatar
 
Newmar Owners Club
Join Date: Oct 2013
Location: iowa
Posts: 449
70r 80r Tires

We have a 1999 Dutch Star. The tire tag inside the motorhome reads that it should have 255/70r/22.5 tires for the rear tires. The tires on the motorhome are 255/80r/22.5. I'm just wondering if it makes a difference? Looks like the 80r tires have been on it along time. Why would they put 80r tires on it? Thanks for all your help.
__________________

Ron & Kerrie is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 05-03-2014, 08:00 PM   #2
Community Moderator
 
"007"'s Avatar


 
Nor'easters Club
Workhorse Chassis Owner
iRV2 No Limits Club
Join Date: Oct 2004
Posts: 29,645
I'm not sure about this but aren't 80's wider if they are check the distance between the inside side walls of tires they may be rubbing together and will cause a wear problem prematurely.
__________________

__________________
98KSCA, 99MACA, 03 KSCA-3740- 8.1 Chev-- ALLISON Trans
VISIT the NEWMAR QUICK TIPS & EASYMODS 1 & 2
QUICK TIPS # 3
RV SYSTEMS & APPLIANCES & RECALLS --- TECH INFORMATION
"007" is offline   Reply With Quote
Old 05-03-2014, 08:19 PM   #3
Senior Member
 
Ron & Kerrie's Avatar
 
Newmar Owners Club
Join Date: Oct 2013
Location: iowa
Posts: 449
007 I just went out and checked, the tires are not rubbing together. Thanks
Ron & Kerrie is offline   Reply With Quote
Old 05-03-2014, 08:37 PM   #4
Senior Member
 
Gordon Dewald's Avatar
 
Winnebago Owners Club
Join Date: Mar 2014
Posts: 12,561
The 80 tires will be "taller" that the smaller 70 tires.

The first number is the tire width. The second number is the height of the tire as a percentage of the width. R would be a radial tire and the 22.5 is the rim size.

From what I have been reading having a larger tire on the tag than specified would increase the weight on the tag and subsequently move weight off of the drive tandems and on to the front axle.
__________________
Gordon and Janet
Tour 42QD/InTech Stacker
Gordon Dewald is offline   Reply With Quote
Old 05-03-2014, 11:18 PM   #5
Senior Member
 
gruelens's Avatar
 
Join Date: Jul 2012
Posts: 1,403
I found this calculator handy to compare tire sizes. Maybe it will help you with your concerns.

Tire Size Calculator - Compare Tire Sizes
__________________
George R. - Fulltiming since January '03
2007 Newmar Mountain Aire 3991
2012 Chevy Malibu LT1
gruelens is offline   Reply With Quote
Reply

Tags
tires



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
19.5" Truck Wheels and Tires drfife Excel Owner's Forum 26 11-25-2014 03:09 PM
Tires Recall (check your tires) TCHB Class C Motorhome Discussions 37 09-03-2014 08:49 PM
Time to replace tires dlboarman iRV2.com General Discussion 9 07-04-2014 06:23 PM
Michelin-X XZA tires Gary.Jones Monaco Owner's Forum 27 04-24-2014 08:11 AM

» Featured Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 03:01 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.