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.

[rgatijnet1]

Getting your coach weighed is a good idea, and setting the tire pressure accordingly. After you get it weighed, check to see if you are light on the front axle and shift weight forward.
Most coaches handle better if the front axle is closer to max weight, rather than light. Just setting the tire pressure on a light front axle will not correct the wandering problem.
You also will encounter some "squirm" with new tires because of softer rubber and a deeper tread than those that your replaced.

[crasster]

To me sounds a bit over inflated and may be because new tires aren't always "set in" like your old ones. They wander a bit.

[Mr_Mark1]

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.

Everyone is suggesting having your coach weighed to get the correct tire pressure which is important.

You didn't mention if you also got an alignment which is something I would also do with a new set of tires.

Have you changed the shocks or had them checked?

MM.

[Community Alumni]

Just want to ride

I put new Michlen tires on my RV and my ride is smooth level and does not wander and in high winds holds the road much better the the Goodyear G670s that I had on prior.

JimR

[ArchHoagland]

New tires will wander just a bit for several hundred miles.

I agree with Executive about the tires being over inflated which will also cause them to wander a bit.

[Community Alumni]

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.

JmR

[down_home]

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.

[wallynm]

Get four corner weights and follow Micheline inflation guide based on the weights and would expect you will get a better ride. If you do know the weights you have no confidence that the inflation pressures have any real meaning.

[Executive45]

Before you can and should do anything, your first stop should be at a truck scale. Pilot/Flying J, moving companies, grain elevators, google your location for a "public scale". Have your coach loaded as you would when you're traveling. Weigh the coach, four corners are best but each axle will suffice for now. Once you have your weight ticket, consult Michelin's tire inflation table and adjust the air pressure accordingly. My guess is your tires are way over inflated which is not as bad as under inflated but close. I'm guessing the table will show your PSI should be around 80PSI.....keep us posted after you get your coach weighed....Dennis

[1492]

Moved from Forum Technical Support

[Tom_Barb]

Install Tire pressure monitor system and run the lowest pressure you can without the tire heating. it will help, but it will not stop.