Michelin tires

[just_want_to_ri]

I have a 2000 35 foot Holiday Rambler Endeavor. I recently replaced all of the tires with Michelin 255-80-22.5 XRV tires. I recently took a trip about 800 miles round trip. I am running 100 PSI in all tires
(max is 110) The motor home seems to want to wander. On the old tires you could drive with one hand but the new ones require all of your attention to stay in a lane. I was flat towing my Jeep so no additional trailer tongue weight. Anyone have any ideas ? I have been told they will wear in and stop wandering but I'm skeptical.

[DSDP_Don]

Right off the bat, your rear tire pressures are about 15 psi to high for that coach. I had a 36' Monaco Diplomat and ran 85 psi in the rear and 95-100 psi in front and I know my Diplomat was heavier than your coach. My numbers were per the charts.

You didn't mention how your previous tires were wearing. As part of your new tire package, I would spend a few more dollars and get the front end aligned. A little adjustment in the "toe in" can make a huge difference, especially with wandering. Make sure whoever does the alignment has the ability to do a four wheel alignment, like a truck facility.

[aztortuga]

I put toyos on the front and rear of my 34 ft coachman some years ago. They were apparently too soft on the sidewalls and we were all over the road. So bad I believed they were dangerous. Took the rig back to Les Schwab and they replaced all of the tires with another model of tire. That fixed the problem. So I suspect your toyos.

[Busskipper]

just want to ride wrote:
First of all, I have the Michelin XRV's on the front and Toyo M154 on the rear at Les Schwab's suggestion. I got the coach weighed and inflated tires per Michelin chart. Last trip out I still had the wandering trouble and the wind moves us where it never did before. I am thinking it was a mistake to let Schwab talk me in to the Toyos. Someone suggested the jeep is pushing me around but i doubt it. I appreciate all of the input on this subject.

just want to ride wrote:
I have a 2000 35 foot Holiday Rambler Endeavor. I recently replaced all of the tires with Michelin 255-80-22.5 XRV tires. I recently took a trip about 800 miles round trip. I am running 100 PSI in all tires
(max is 110) The motor home seems to want to wander. On the old tires you could drive with one hand but the new ones require all of your attention to stay in a lane. I was flat towing my Jeep so no additional trailer tongue weight. Anyone have any ideas ? I have been told they will wear in and stop wandering but I'm skeptical.

Ivylog wrote:
If I have this right, four months ago you put Michelins all around and now you replaced the rear four with Toyo on your 2000 HR? You are still having handling problems. Having run Toyo's on a previous MH, they are not your problem. New tires can take awhile to break in... I know it's easy for me to say give it some more time, but that is what I would do.

I'm confused - but if it were me I'd run back and get the michelins back? and play with the pressure, till it wears in and feels right.

???:?

[Ivylog]

If I have this right, four months ago you put Michelins all around and now you replaced the rear four with Toyo on your 2000 HR? You are still having handling problems. Having run Toyo's on a previous MH, they are not your problem. New tires can take awhile to break in... I know it's easy for me to say give it some more time, but that is what I would do.

[wolfe10]

We will need a LOT more information to discuss being pushed by side winds.

What coach?

What actual weights and what PSI, yes and what tires?

Condition of sway bar bushings, shocks, etc?

[just_want_to_ri]

First of all, I have the Michelin XRV's on the front and Toyo M154 on the rear at Les Schwab's suggestion. I got the coach weighed and inflated tires per Michelin chart. Last trip out I still had the wandering trouble and the wind moves us where it never did before. I am thinking it was a mistake to let Schwab talk me in to the Toyos. Someone suggested the jeep is pushing me around but i doubt it. I appreciate all of the input on this subject.

[Busskipper]

just want to ride wrote:
I have a 2000 35 foot Holiday Rambler Endeavor. I recently replaced all of the tires with Michelin 255-80-22.5 XRV tires. I recently took a trip about 800 miles round trip. I am running 100 PSI in all tires
(max is 110) The motor home seems to want to wander. On the old tires you could drive with one hand but the new ones require all of your attention to stay in a lane. I was flat towing my Jeep so no additional trailer tongue weight. Anyone have any ideas ? I have been told they will wear in and stop wandering but I'm skeptical.

Not going to argue with any of the advice given - but - if it were me if it continued after the next trip, and any adjustments you make then I'd Get an Alignment.

When the car does not run right - what do you do? IMHO anytime your Coach is not EASY to Drive more likely than not it's the alignment.

In talking with a fellow RV'er who happened to own 300 over the road trucks - he said when the kids came in they put everything on the computer to verify the results of their service practices and the the BEST money spent for increased mileage and Tire wear was a Full Truck Alignment. His words were the reason he can take off 4-6 months a year was because he spends that much less on Tires and Fuel.

So,

[Smitty77]

I'm in the club that:

-Adjusts tire PSI based upon actual coach four corners weight, per the tire manufactures PSI charts.

-All new sets of tires, are accompanied with an all axle alignment.

-I go at least 500 miles on the new set, before even thinking about going back and talking about ride feel. (I ended up at about 750 miles on one set of tires, having the steers changed over to a different model, this was on our Bounder.)

Best to all, be safe, have fun,
Smitty

[mrsportys]

(Michelin Tires will take 500 to 1,000 miles to break in! It's the only thing that I don't like about Michelin Tires. I've had to endure this many times in my 44-1/4 years driving over the road on Michelin Tires. The Michelin Tires on my RV are aired up to 100 lbs. all around.)
The age old "what do I inflate my tires at...my rig is not overloaded so do I need to go on (find) a scale?
You put yours at 100 psi front and back, why?
Some say closer to max PSI (on front tires) offers a better ride?
I have 235/80R 22.5G

[J-Rooster]

Michelin Tires will take 500 to 1,000 miles to break in! It's the only thing that I don't like about Michelin Tires. I've had to endure this many times in my 44-1/4 years driving over the road on Michelin Tires. The Michelin Tires on my RV are aired up to 100 lbs. all around.

[Tom_Barb]

We run the Michelin 22.5 XRV tires, we also run a tire pressure monitor system. After many thousands of miles we have determined the 100 PSI cold is the right pressure at a load of 27,300# . There is no difference between left and right tires on any axel. My left and right side are nearly equal, less than 10 pounds difference front and rear.
We have over 40,000 miles on these tires, the pressure is correct, and they still wander, but the ride great.

My advise???? get used to it, it isn't going away.

OBTW, at 40k, the tread depth hasn't changed.

[down_home]

Jim & Betty wrote:

down home wrote:
The Michelins ride better than truck tires or the GY670sbecause they have softer sidewalls.
We put Michelins on the steer axle and are considering whether to do the same n the drive axle.
We follow the inflation recommendations on the motorhome behind the drivers seat.
Maximum pressure beat us to death, and loosened some things up. We don't carry, that is most of don't the heavy loads for those pressures like a semi.
Soft side walls means more squirm beside the softer ride though.
I am thinking hoping the same tire on both axles will even out the tendency to squirm around.
I read every post about tires on motor homes trying to keep abreast of what is working for everyone.
I don't think I want to go back to a stiff tire on steer axle unless we put some lead in the front end though.
Steer Safe and soon may be the way to go.
I'm going to keep reading here and see what is working for others.
It's not much fun using the stering wheel as a tiller.

Down Home
You need to follow the inflation recommend by the tire manufacture after weighing the RV preferably at all four corners.
How does the RV manufacture know what tires you will install on your RV that they can give you a recomendation on tire inflation?
Just because a tire says maximum inflation is 120 pounds does not mean you need to air up to that.

Jim: I think that is what I said. Where we have it stored he adjsut the pressures.
He/they maintain a bunch of Mhs.
I may misspeak but I think he does use a table on pressures.
I don't know if he has weighed it. We haven't. I need to ask, if we ever take it out again. We used the information on the sticker behind Driver's seat when it had original tires.
We took about 250 lbs of tv out of the front cap, and could probably run a tad less.

JmR

[Ivylog]

New tires and too much air in them, especially on the rear will make it wander. Weigh, set pressures and give it more miles.

[chastho]

Did you use your jacks to raise your MH to install the tires? If so check your shocks, I did and blew the seals when I raised the jacks and had the same problem. New shocks on the rear and no more wandering. The problem was caused by lowering the jacks to max and then dropping MH all at once instead of a little at a time, blowing the seals.