Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Alpine Coach 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 05-23-2018, 01:47 PM   #1
Member
 
Alpine03's Avatar
 
Join Date: May 2017
Location: San Diego
Posts: 88
New Michelin tires

My Toyos are 8 years old , look New but thinking of putting New Michelins on the front. Michelin does not make 295/75/R22.5 which is what the Toyos are. What size should I use? 34'FDD.
Alpine03 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 05-23-2018, 01:53 PM   #2
Senior Member
 
rgvtexan's Avatar
 
Winnebago Owners Club
Freightliner Owners Club
Join Date: Oct 2009
Location: E WA or S TX
Posts: 4,046
275/80 22.5 would be a good fit.
__________________
04 Horizon QD, 12 Ford Flex, Excalibar, Brakemaster, Winter Texan, RVin! since 1974
Norm, Donna & Tinker Kat(RIP) 01 Z3
Life is a Timed Event, you only get One Go Around!
rgvtexan is online now   Reply With Quote
Old 05-23-2018, 01:56 PM   #3
Senior Member
 
dennis45's Avatar
 
Join Date: Jun 2012
Location: AB
Posts: 7,587
Quote:
Originally Posted by rgvtexan View Post
275/80 22.5 would be a good fit.
I agree. Most truck tire centers will carry these if you need one in an emergency situation.
__________________
2019 Unity LTV CB, pushed by a 2013 Honda CRV, BlueOx Baseplate, Aventa Bar & Patriot Brake
dennis45 is offline   Reply With Quote
Old 05-23-2018, 01:56 PM   #4
Senior Member
 
Mr_D's Avatar
 
Country Coach Owners Club
Solo Rvers Club
iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 37,725
You'll have to watch the weight rating too, not just size.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft, HWH Active Air
Charter Good Sam Lifetime Member, FMCA,
RV'ing since 1957, NRA Benefactor Life, towing '21 Jeep JLU Rubicon Ecodiesel
Mr_D is offline   Reply With Quote
Old 05-23-2018, 02:00 PM   #5
Senior Member
 
Old Scout's Avatar
 
Join Date: Nov 2005
Posts: 7,383
Michelin brand is up to you--lots of good input on tire brands from current post on this forum. My 2003 also came with 295/75r. I have used both 295/80r and 11r tires on my coach since the OEMs. These sizes are slightly larger in diameter so both speedometer and odometer are off--figure 3 MPH on speedometer and 5% on odometer [miles]. Am told Cummins can adjust engine ECM to accommodate larger dia. tires but have never bothered. RPMs are perhaps 100 lower based on displayed speed. Don't see any issues with slightly larger tires.
PS--the next step down is the 275/80r which is a considerably smaller tire in stance and appearance--not recommended--IMHO....
__________________
Old Scout
2015 IH45 Foretravel
2003 Alpine 40' MDTS [Sold]
New Braunfels, Texas
Old Scout is online now   Reply With Quote
Old 05-23-2018, 03:42 PM   #6
Senior Member
 
Join Date: Oct 2014
Posts: 7,867
Yes, the Michelin equivalent of the 295/75R22.5 is the 275/80R22.5.


And, you want the H rated (load rating) in either.
__________________
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
wolfe10 is offline   Reply With Quote
Old 05-23-2018, 05:40 PM   #7
Senior Member
 
Tom and Patty's Avatar
 
Alpine Owners Club
Join Date: Jun 2004
Posts: 2,553
Quote:
Originally Posted by wolfe10 View Post
Yes, the Michelin equivalent of the 295/75R22.5 is the 275/80R22.5.


And, you want the H rated (load rating) in either.

Correct as to the 295 and 275 being the same height...40.3 vs 40.2 respectively. The 275 is 20mm narrower. Both sizes will scale the same weight in either G - 6175 @ 110 psi and H- 7160@120. Using Bridgestone and Michelin data charts below.


My 2000 has G rated with a 10,500 front axle. I installed BFG's and am happy with those, but will go Michelin or Bridgestone for our next set....which will be soon. If you take them off before they are 6 years old, you should ask for a credit. They will get resold as used for $150 or more to a trucker


https://commercial.bridgestone.com/c...ook%202015.pdf


https://commercial.bridgestone.com/c...ook%202015.pdf
__________________
Tom, Patty, Hannah "The Big Dog" and Abby Kat, Indianapolis, Indiana 2000 Alpine 36' FDS 72232, 2005 Blue Bird M450 LXI Our Photos
"We live out in our old van. Travel all across this land. Drive until the city lights dissolve into a country sky, just me and you - hand in hand." Zac Brown Band
Tom and Patty is offline   Reply With Quote
Old 05-23-2018, 06:19 PM   #8
Senior Member
 
Fleetwood Owners Club
Join Date: May 2015
Location: Michigan
Posts: 169
Michelin tires

I am getting new tires in June, current tire is 275/70/22.5 Firestone and I am going to same size in Michelin. Current tires have H rating but Michelin has J rating. Am I setting myself up for problems? I assume a harder ride, anything else? Would I be better to go to 275/80/22.5 for G load rating?
__________________
Roland, Linda, Matt, LuLu, Mo and Chewy
Fleetwood Bounder 38 N
2017 Jeep Grand Cherokee Limited toad
rfsod48 is offline   Reply With Quote
Old 05-23-2018, 07:00 PM   #9
Senior Member
 
Tom and Patty's Avatar
 
Alpine Owners Club
Join Date: Jun 2004
Posts: 2,553
Sorry I see I posted BFS twice. Here is the Michelin data book.


https://www.michelintruck.com/assets...ok_Jan2007.pdf
__________________
Tom, Patty, Hannah "The Big Dog" and Abby Kat, Indianapolis, Indiana 2000 Alpine 36' FDS 72232, 2005 Blue Bird M450 LXI Our Photos
"We live out in our old van. Travel all across this land. Drive until the city lights dissolve into a country sky, just me and you - hand in hand." Zac Brown Band
Tom and Patty is offline   Reply With Quote
Old 05-23-2018, 07:08 PM   #10
Senior Member
 
Tom and Patty's Avatar
 
Alpine Owners Club
Join Date: Jun 2004
Posts: 2,553
Quote:
Originally Posted by rfsod48 View Post
I am getting new tires in June, current tire is 275/70/22.5 Firestone and I am going to same size in Michelin. Current tires have H rating but Michelin has J rating. Am I setting myself up for problems? I assume a harder ride, anything else? Would I be better to go to 275/80/22.5 for G load rating?

275/70R22.5 LRH is your original size? It is 2 inches shorter than the 275/80R22.5.

IMO no need to go up in load range unless you are overloading your tires, your axle can carry more than your OE tires (highly unlikely). You cannot reduce air pressure, it is the same size tire. No advantage that I can see from the limited info I have.
__________________
Tom, Patty, Hannah "The Big Dog" and Abby Kat, Indianapolis, Indiana 2000 Alpine 36' FDS 72232, 2005 Blue Bird M450 LXI Our Photos
"We live out in our old van. Travel all across this land. Drive until the city lights dissolve into a country sky, just me and you - hand in hand." Zac Brown Band
Tom and Patty is offline   Reply With Quote
Old 05-23-2018, 07:08 PM   #11
Senior Member
 
1doodadd's Avatar
 
Join Date: Dec 2016
Location: So Cal
Posts: 1,368
A friend of mine who owns a 2001 Monaco Dynasty had the 295 75 22.5 on it just changed to the 295 80 22.5 Toyos M144. I would go with the M144 Toyo's 295 80 22.5 16 ply instead of the Michelins and keep 3 grand in my pocket. See the chart for the difference of size


https://tiresize.com/comparison/
__________________
2000 42' BEAVER MARQUIS AMETHYST w/tag 2 SLIDES CAT C12 425 hp SOLD.........

2014 Tiffin Allegro Bus 37AP
1doodadd is offline   Reply With Quote
Old 05-23-2018, 07:13 PM   #12
Senior Member
 
Damion's Avatar
 
National RV Owners Club
Freightliner Owners Club
Join Date: Sep 2017
Location: Rice Lake, Wisconsin
Posts: 790
Watch the Date Code on New tires! Have my 3rd set of Michelin's on order!
1st. set came in 1.25 years old! Sent them back. 2nd set was older yet, dealer turned them back before I seen them. Waiting now for fresh set right from Michelin.
Dealer has been great. They say warehouse will not check Date Code for them, order and return.
__________________
2003 National Tradewinds LTC 7374 FL XC-Chassis IFS, Steer Safe, 8.3 ISC 350 Cummins, 3000MH Allison, 2023 Equinox, Blue Ox Tow-Bar, Brake Master Air Over Hyd
Damion is offline   Reply With Quote
Old 05-23-2018, 08:28 PM   #13
Senior Member
 
Fleetwood Owners Club
Join Date: May 2015
Location: Michigan
Posts: 169
Michelintires

My MH sticker calls for 275/70/22.5 G load rating. Michelin doesn’t make this size tire in G rating, it only comes as J rating. I have enough clearance to go to 275/80/22.5 G rating but that would change RPM/MPH rating because of difference in revolutions per mile. Which would be worse, J rating or RPM/MPH change?
__________________
Roland, Linda, Matt, LuLu, Mo and Chewy
Fleetwood Bounder 38 N
2017 Jeep Grand Cherokee Limited toad
rfsod48 is offline   Reply With Quote
Old 05-23-2018, 08:47 PM   #14
Senior Member
 
Tom and Patty's Avatar
 
Alpine Owners Club
Join Date: Jun 2004
Posts: 2,553
Quote:
Originally Posted by 1doodadd View Post
A friend of mine who owns a 2001 Monaco Dynasty had the 295 75 22.5 on it just changed to the 295 80 22.5 Toyos M144. I would go with the M144 Toyo's 295 80 22.5 16 ply instead of the Michelins and keep 3 grand in my pocket. See the chart for the difference of size


https://tiresize.com/comparison/

This is a good guide and will bring you close to the actual size. If you stay with tier1 and tier 2 tires your pretty good. but for more accurate sizing, check the manufactures data book.



Here is the formula:
275/80R22.5
275 is width in mm
80 is the aspect ratio - % height of sidewall in relation to the width


275*.80=220 mm height next convert to inches 25.4mm/inch
220/25.4= 8.66 inches in height if sidewall
8.66*2(sidewalls)17.32 inches
17.32+22.5 (wheel diameter) 39.82


Now you know more than many tire salespeople regarding calculating size.



Enjoy!!
__________________
Tom, Patty, Hannah "The Big Dog" and Abby Kat, Indianapolis, Indiana 2000 Alpine 36' FDS 72232, 2005 Blue Bird M450 LXI Our Photos
"We live out in our old van. Travel all across this land. Drive until the city lights dissolve into a country sky, just me and you - hand in hand." Zac Brown Band
Tom and Patty 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
Toyo Tires to Michelin XZE Tires Travel8 MH-General Discussions & Problems 13 07-13-2016 06:52 AM
Need New Michelin Tires in San Jose Lukeaa Monaco Owner's Forum 8 02-26-2013 07:09 AM
New Michelin XZA2 Energy Tires. distaff Class A Motorhome Discussions 8 09-05-2011 11:22 AM
Michelin "X", vs Michelin "XRV" Chickadee Class A Motorhome Discussions 12 04-29-2009 04:41 AM
Michelin New Series Tires BB501 MH-General Discussions & Problems 7 03-25-2008 03:27 PM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 08:38 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.