Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
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 03-17-2016, 03:59 PM   #1
Senior Member
 
D Lindy's Avatar
 
Winnebago Owners Club
Join Date: Aug 2013
Posts: 1,635
22.5 Tire size differential

My coach has Michelin 275/80Rx22.5 on it originally. I'm looking at other brands and not really seeing many other then Continental with this size. I see a number of other commercial tires with size 295/75Rx22.5 In checking the differences in these two sizes, I get the following info that the 295/75's are
0.3% or .01" larger in Diameter
7.2% or .78" wider @ tread
0.6% or .05" wider @ sidewall
0.3% or .4" larger circumference
Speed difference @ 20 is 20.1 and @ 60 is 60.2
So if I opt for the 295/75Rx22.5 what's the verdict?
__________________

__________________
2012 Journey 40U (Our Incredible Journey)
2008 Dodge Dakota(TOAD) 2005 Honda Shadow in TOAD
AF-1 braking system
D Lindy 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 03-17-2016, 04:15 PM   #2
Senior Member
 
Join Date: Mar 2013
Posts: 514
According to Goodyear, those two sizes are equivalent. The data you've listed confirms that.

As long as the weight rating is adequate for your RV, its all good.
__________________

__________________
cwsqbm is offline   Reply With Quote
Old 03-17-2016, 05:52 PM   #3
Moderator Emeritus
 
Gary RVRoamer's Avatar


 
Join Date: Jan 2000
Location: Silver Springs, FL. USA
Posts: 18,101
Just make sure you have room in the front wheel wells for the slightly larger tire. Turn the wheel all the way in both directions and see how much clearance is left. Also compare the dual spacing for two sizes. They should be fine, but the time to check is before you buy!

Or buy the Continentals and don't worry. They are an excellent tire - I've been running four of them on the rears for 3 years now.

I'm curious. Do you need tires already on your 2012? Or just doing some early planning?
__________________
Gary Brinck
Former owner of 2004 American Tradition
Home is in the Ocala Nat'l Forest near Ocala, FL
Summers in Black Mountain, NC
Gary RVRoamer is online now   Reply With Quote
Old 03-17-2016, 06:07 PM   #4
Senior Member
 
Monaco Owners Club
Join Date: Feb 2011
Location: Signal Hill, California
Posts: 3,296
I did this research a year or so ago, and I found out that the Bridgestone tire company makes the Firestone tire in the same way as they make the more expensive Bridgestone tire. Only difference is the final mold says Firestone. Same plys etc. that is why you will see more Firestone tires on long haul fleet trucks (great tire small price). With an added advantage of being able to find the tire at most a truck tire stores. I also currently have Goodyear 275/80R/22.5s. Not always easy to find this size. Yes you guessed right I'm going with the 295/75R/22.5s. Sanford
__________________
Sanford, Linda & R cats: Molly, Levi, Cody
2011 Monaco by Navistar RV
Good Sam Life Member Good Sam Hams Chapter
deSanford is offline   Reply With Quote
Old 03-17-2016, 07:48 PM   #5
Senior Member
 
D Lindy's Avatar
 
Winnebago Owners Club
Join Date: Aug 2013
Posts: 1,635
Gary; My Michelin's have DOT dates in 2011, and are showing the Michelin sidewall cracking. We're planning on going full time in Sep 2017 and figured to replace the 2 front tires now and then the rear 4 next summer to split the costs a bit, also to new sneakers all the way around when taking off on our retirement adventure.
__________________
2012 Journey 40U (Our Incredible Journey)
2008 Dodge Dakota(TOAD) 2005 Honda Shadow in TOAD
AF-1 braking system
D Lindy is offline   Reply With Quote
Old 03-17-2016, 07:56 PM   #6
Senior Member
 
CountryFit's Avatar
 
Join Date: Sep 2011
Location: Between the Oceans
Posts: 3,550
Blog Entries: 2
some people had cracks on side walls they called michelin and got replacement for free or partial discount. call them to see what they say.
__________________
2000 Country Coach Intrigue 40', ISC 350
2014 Ford C-Max Energi
CountryFit is offline   Reply With Quote
Old 03-17-2016, 08:10 PM   #7
Senior Member
 
Sheriffbubba's Avatar
 
Holiday Rambler Owners Club
Join Date: Apr 2013
Location: Marysville Washington
Posts: 347
I went from 275/80/22.5 Goodyear to 295/75/22.5 Toyo tires on my HR Endeavor... Worked out great! Handles better, rides better and it's nice to have a little bit wider tire in contact with the road.


Sent from my iPad using iRV2 - RV Forum
__________________
Sheriffbubba is offline   Reply With Quote
Old 03-17-2016, 08:37 PM   #8
Senior Member
 
Monaco Owners Club
Join Date: Feb 2011
Location: Signal Hill, California
Posts: 3,296
Now live is a little more complicated Firestone (aka Bridgestone) versus Toyo tires. Sanford Thanks Sheriffbubba.........
__________________
Sanford, Linda & R cats: Molly, Levi, Cody
2011 Monaco by Navistar RV
Good Sam Life Member Good Sam Hams Chapter
deSanford is offline   Reply With Quote
Old 03-17-2016, 09:22 PM   #9
Senior Member
 
jerichorick's Avatar
 
Winnebago Owners Club
Join Date: Jun 2013
Location: Full-timer/volunteer w/SOWERS
Posts: 3,394
Quote:
Originally Posted by D Lindy View Post
My coach has Michelin 275/80Rx22.5 on it originally. I'm looking at other brands and not really seeing many other then Continental with this size. I see a number of other commercial tires with size 295/75Rx22.5 In checking the differences in these two sizes, I get the following info that the 295/75's are
0.3% or .01" larger in Diameter
7.2% or .78" wider @ tread
0.6% or .05" wider @ sidewall
0.3% or .4" larger circumference
Speed difference @ 20 is 20.1 and @ 60 is 60.2
So if I opt for the 295/75Rx22.5 what's the verdict?
Where this would be a problem is in a mix and match emergency situation. My new Continentals on the front are the 295/75's. (Still light out so I could peek out the door for you.) I have been very busy upgrading the volunteer RV sites to 50A so I haven't called Schawb yet about the Toyo M154 tires for the rear. I'll post the results when I have them. I know the spacing on the rear duels is important to maintain. If the tiers are too wide the side walls my scrub together and cause a heating issue or sidewall damage. If the tread is too wide the tires may contact the fender skirt. I am considering the 11R22.5 M154 H range tire. The pictures give an idea of what we are talking about, along with the site addresses.

I am confused also. The best one was the tire rep who told me changing tire size could adversely affect the drive train. What I see right out of the gate is that the speedometer will be affected.

I am with you, Dana. How do we choose. we're neck and neck in this horse race.

Rick Y

PS: I just emailed Toyo to see what they recommend for our size replacement.
Attached Thumbnails
Click image for larger version

Name:	Michelin-z3.GIF
Views:	89
Size:	72.4 KB
ID:	121676   Click image for larger version

Name:	Michelin.GIF
Views:	97
Size:	151.4 KB
ID:	121677  

Click image for larger version

Name:	Toyo M154.GIF
Views:	92
Size:	157.7 KB
ID:	121678  
__________________
Rick & Melissa Young & Dawson, 2011 Itasca Meridian 40U, Freightliner XCL, Cummins ISL 380HP/DEF, Allison 3000 MH, 2014 Honda CR-V, SMI AF1, Blue Ox tow equip., TST 507 TPMS, TruCenter steering control, Hughes auto transformer.
Servants On Wheels Ever Ready. Best job we ever paid to do . (full time volunteers)
jerichorick is offline   Reply With Quote
Old 03-17-2016, 09:49 PM   #10
Senior Member
 
ecurb74's Avatar
 
Join Date: Feb 2013
Posts: 233
I just changed over to the Yokohama 295 75R 22.5's a few weeks ago. I can tell no difference in the clearances nor the speedometer. I checked it with GPS and radar.....all read the same as the ECM. At 65 my speedometer is off 3mph as it was with the old 275 80R's. I wouldn't hesitate in going to the different size. Basically the same tire...unless you want to split hairs!


Bruce & Teresa
2000 Foretravel U320 4010
Cummins ISM 450hp
Allison HD4060R 6 Spd W/Retarder
__________________
Bruce & Teresa
2000 Foretravel
U320 4010
ecurb74 is offline   Reply With Quote
Old 03-17-2016, 10:15 PM   #11
Senior Member
 
slickest1's Avatar
 
Monaco Owners Club
Join Date: Jul 2011
Location: B.C.
Posts: 3,727
I went from 9 year old Goodyear 295/75 22.5 to Firestone 1100/22.5's. They are slightly bigger 1 inch I believe but there are no issues on my coach.. I am very impressed after 5000 miles.
__________________
Dennis & Marcie & Captain Hook The Jack Russell,aka PUP, 04 Dodge/Cummins 01 Citation 29.rk fifth wheel.RVM59
slickest1 is offline   Reply With Quote
Old 03-17-2016, 11:27 PM   #12
Senior Member
 
mccrob's Avatar
 
Join Date: Feb 2012
Posts: 353
Les Schwab put Falkon 295/70/22.5 on my coach everything is fine I'll run them till they time out😎
__________________
Bob & Elaine McClelland and the spoiled pup Izzie
2008 Monaco Diplomat
Desert Hills & Parker Az
mccrob is online now   Reply With Quote
Old 03-18-2016, 01:31 AM   #13
Member
 
Join Date: Feb 2010
Posts: 79
I called Michelin 2-3 years ago to find out the warranty on my tires. They told me that the warranty applies to the original owner and is for five years from the date of purchase. So if you bought your coach new with those tires, you should contact Michelin and let them know that you have cracks in you sidewalls. They will likely ask you to have a Michelin dealer inspect your tires and they will let Michelin Warranty Dept. know their state. Who know, you may get a great offer from Michelin that may save you even more than some of the other brands. I've been riding on them for over forty years.
__________________
trux is offline   Reply With Quote
Old 03-18-2016, 06:06 AM   #14
Senior Member
 
Triker56's Avatar
 
Fleetwood Owners Club
Join Date: Jun 2009
Posts: 3,954
Michelin has 0 warranty on sidewall cracks. Goodyear G670's have a 7 year sidewall warranty on cracks.

Replaced my G670's at 10 years 4 months. I will replace them again in 2025 if I am still around then.
__________________

__________________
99 Discovery 34Q ISB
2014 MKS AWD EcoBoost Toad
Fulltime Since "99"
Triker56 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
What size do I need? Size DOES matter! thrushl Monaco Owner's Forum 17 08-27-2013 11:07 AM
RV weight and engine size and does size matter? DaveTN Class C Motorhome Discussions 23 03-20-2013 02:17 AM
Is the Dinette size standard? Looking for Sightseer size ctcamper Winnebago Industries Owner's Forum 1 08-30-2010 06:59 PM
Michelin size = other brand size--?? PlayItForwrd MH-General Discussions & Problems 7 06-07-2010 09:58 PM
Motor Size vs. Trailer Size Cayman Dave Toads and Motorhome Related Towing 8 10-21-2007 09:50 AM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 10:09 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.