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


Reply
 
Thread Tools Display Modes
Old 05-25-2016, 05:48 PM   #1
Senior Member
 
ernest917's Avatar
 
Join Date: Jun 2011
Location: On Another Adventure
Posts: 2,563
Tire Pressure

OK - I have Michelins on my coach... What is the recommended cold pressure?? Front and rear....


Sent from my iPad using Forest River Forums
ernest917 is offline   Reply With Quote
Old 05-25-2016, 06:12 PM   #2
Senior Member
 
tmmar's Avatar
 
Join Date: Apr 2008
Location: Long Island (Nassau County), NY
Posts: 4,352
Ernest,
You would need the weight of your coach at each wheel (preferably). If not, front axle and rear axle weights would suffice. You would then go to Michelins chart to see what pressure they recommend for your weights and tire size. But, as I said, you need to get the weight of your coach.
Tom
__________________
Tom and Margaret
2014 Berkshire 390bh-60

tmmar is offline   Reply With Quote
Old 05-25-2016, 06:27 PM   #3
Senior Member
 
ernest917's Avatar
 
Join Date: Jun 2011
Location: On Another Adventure
Posts: 2,563
I know you're correct but I just need a ballpark idea....


Sent from my iPhone using Forest River Forums
ernest917 is offline   Reply With Quote
Old 05-25-2016, 06:31 PM   #4
Senior Member
 
tmmar's Avatar
 
Join Date: Apr 2008
Location: Long Island (Nassau County), NY
Posts: 4,352
Ernest,
Take a look at this chart.
Tom

Michelin RV Tires | View Michelin RV Tires load and inflation tables for motorhomes and recreational vehicles. | Michelin RV Tires
__________________
Tom and Margaret
2014 Berkshire 390bh-60

tmmar is offline   Reply With Quote
Old 05-25-2016, 10:02 PM   #5
Senior Member
 
dan-nickie's Avatar
 
Join Date: Feb 2014
Location: Dallas TX
Posts: 1,675
Quote:
Originally Posted by ernest917 View Post
I know you're correct but I just need a ballpark idea....


Sent from my iPhone using Forest River Forums
What size tire?
__________________
Dan
2014 Berkshire 390RB-60
dan-nickie is offline   Reply With Quote
Old 05-25-2016, 10:51 PM   #6
Senior Member
 
ernest917's Avatar
 
Join Date: Jun 2011
Location: On Another Adventure
Posts: 2,563
255/80/22.5 tires.... 100psi all around OR 105 psi up front and 110 psi rear???


Sent from my iPad using Forest River Forums
ernest917 is offline   Reply With Quote
Old 05-25-2016, 11:13 PM   #7
Senior Member
 
ernest917's Avatar
 
Join Date: Jun 2011
Location: On Another Adventure
Posts: 2,563
Man that chart confused the heck out of me....


Sent from my iPhone using Forest River Forums
ernest917 is offline   Reply With Quote
Old 05-26-2016, 06:53 AM   #8
Senior Member
 
accumack's Avatar
 
Join Date: Sep 2011
Posts: 522
When i had the 255s I ran 110psi all around. With the 275s I run 105 psi we like the handling and stiffer ride.
__________________
2011 Berkshire 390-rb-40, upgraded tires and front axle airbags, 2012 Jeep Wrangler 2 door, Blue Ox baseplate and BlueOx aladdin tow bar, Blue Ox Patriot brake system, wiring run through right frame rail and homemade led taillight bar.FB.
Ham KG5LTL.
accumack is offline   Reply With Quote
Old 05-26-2016, 07:08 AM   #9
Senior Member
 
RSchleder's Avatar
 
Join Date: Apr 2014
Location: Iowa
Posts: 1,413
I'm surprised that you don't have a "sticker" that tells you the recommended tire pressure attached to your coach.
__________________
Days camping (2016)----181 days
Days camping (2017) --- 82 days
2016 Wildcat MAXX 28RKX (33' TT), 2007 13' Scamp
2015 Ram Laramie Hemi, w/air suspension
30 years RV'ing
11 different RV's
RSchleder is offline   Reply With Quote
Old 05-26-2016, 08:25 AM   #10
Senior Member
 
tmmar's Avatar
 
Join Date: Apr 2008
Location: Long Island (Nassau County), NY
Posts: 4,352
Quote:
Originally Posted by RSchleder View Post
I'm surprised that you don't have a "sticker" that tells you the recommended tire pressure attached to your coach.
The tire pressure is dependent on the loaded weight of the coach (coach +fuel,water,passengers,food,holding tanks,propane,lawn chairs, etc,etc.). So the more stuff you put in, the heavier it gets and the tire pressure changes accordingly.
__________________
Tom and Margaret
2014 Berkshire 390bh-60

tmmar is offline   Reply With Quote
Old 05-26-2016, 08:27 AM   #11
Senior Member
 
accumack's Avatar
 
Join Date: Sep 2011
Posts: 522
I would never go by the sticker. I use the tire manufacturer information. Need I say Firestone vs Ford Explorer? Ford recommended dangerously low pressures that cause major problems.
__________________
2011 Berkshire 390-rb-40, upgraded tires and front axle airbags, 2012 Jeep Wrangler 2 door, Blue Ox baseplate and BlueOx aladdin tow bar, Blue Ox Patriot brake system, wiring run through right frame rail and homemade led taillight bar.FB.
Ham KG5LTL.
accumack is offline   Reply With Quote
Old 05-26-2016, 12:18 PM   #12
Senior Member
 
gasman94's Avatar
 
Join Date: Oct 2012
Location: Southwestern Mi
Posts: 1,242
I've been running 90-95 rear and 100-105 fronts.



Rich
gasman94 is offline   Reply With Quote
Old 05-26-2016, 12:50 PM   #13
Senior Member
 
Join Date: Apr 2012
Location: West Michigan/Fort Myers
Posts: 3,927
Remember there is a big difference between 255 and 275. Most of the Moho's that came with the 255 had to run 110 psi to carry the weight. I know it's been said but get it weighed. It's simple to do and there are CAT scales all over the place. Every truck stop has one. If you are concerned about how to do it park and go in and ask.
All you need to do is pull up to the scale and if you can reach the call button tell them it's a private weight not part of a company. Have your front axle on the first pad and your rear on the second pad with the toad on the third. If you need to be out side to reach the key pad just stand on the front pad. When done just go in and get your sheet. You can reweigh as many time in one day as you want. So if you want to see how a full tank of water effects the front axle go fill it and reweigh. Very easy to do and very important info to have.
Ernest I would think that going to a tire that carries more weight would give you a better ride if you are tire shopping. If I remember correctly you have that are Mercedes engine with the 3000 Trans. Your weak spot are the tires.



Phil57 is offline   Reply With Quote
Old 05-26-2016, 01:44 PM   #14
Senior Member
 
ernest917's Avatar
 
Join Date: Jun 2011
Location: On Another Adventure
Posts: 2,563
Phil....

My tires only have 4,500 miles on them so I won't be replacing them anytime soon - I hope.... I'll ck into getting coach weighed and go from there.....


Sent from my iPad using Forest River Forums
ernest917 is offline   Reply With Quote
Old 05-26-2016, 02:40 PM   #15
Senior Member
 
Join Date: Apr 2012
Location: West Michigan/Fort Myers
Posts: 3,927
Ernest I assumed they were original.



Phil57 is offline   Reply With Quote
Old 05-26-2016, 03:11 PM   #16
Senior Member
 
ernest917's Avatar
 
Join Date: Jun 2011
Location: On Another Adventure
Posts: 2,563
Phil....

I wish.... Had to replace mine a year ago due to age not miles.... Sidewall cracks......


Sent from my iPad using Forest River Forums
ernest917 is offline   Reply With Quote
Old 05-26-2016, 04:41 PM   #17
Senior Member
 
NV245's Avatar
 
Join Date: Jun 2013
Location: Carmel, In
Posts: 178
If I remember previous posts, Ernest has a 360QS with the Mercedes/3000 powertrain. The 360QS, being shorter, has fewer weight issues, and tire pressure would be less than a 390. If I recall earlier posts, I also remember him going to aluminum wheels (also lighter). I also have a 360QS, however I still think it best to work from actual loaded weights.


Sent from my iPad using Forest River Forums
NV245 is offline   Reply With Quote
Reply

Tags
pressure, tire


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


» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.



All times are GMT -5. The time now is 01:24 AM.