rough ride

[mlb4e]

As I am new to this type of vehicle, I was wondering just how rough a ride to expect. I have 245 70 R19.5 Michelin XRV tires all at about 86-88 psi. The ride is really rough over any road bumps, joints, etc. Really shakes everything. Is this normal? Tires too full? Shocks? On a smooth road the ride is smooth.

[fun 33V]

I'm running the same tires and air pressure on my W20 workhorse chassie and it acts the same as yours.

[Clifftall]

Maybe both of your pressures are wrong ( two wrongs don't make a right ). Have you weighed your coaches ?

[mlb4e]

I have not weighed mine yet. Not sure how to do it or where.

[Clifftall]

Originally Posted by mlb4e

I have not weighed mine yet. Not sure how to do it or where.

A lot of truck stops have scales. They will weigh each axle ( all four corners is best but a little more difficult to find a place ). Then you refer to a tire chart for those weights and adjust pressures. This will help with the ride.

[Steve N Sal]

Originally Posted by mlb4e

I have not weighed mine yet. Not sure how to do it or where.

You can have it weighed at most truck stops. Do a search on weighing your motorhome and I'm sure you'll get a clear explanation of how to do it. Good Luck.

[mlb4e]

Thanks for the tip. I'll have to find some scales. Is there some way to test if the shocks need to be replaced?

[MRBB]

I'd put on some Koni FSD shocks. Made a big difference in my first MH.

[Ramblin]

Originally Posted by mlb4e

Thanks for the tip. I'll have to find some scales. Is there some way to test if the shocks need to be replaced?

One way to tell is 'porpoising'. If you go over a speed bump and your coach bounces up and down more than once or twice, you need shocks.

[1ciderdog]

As a suggestion: Some landfills (garbage dumps in the good old days) have scales and you might be able to use them. In Oregon you can use the highway scales but I don't know if you can do that in you area.

[bellsharbor]

I am running my Goodyear tires, the same size as yours, at 80lbs. I think yours are a little high and it will make a difference if you can lower the pressure a little. Also, Koni's are a good shock and would help also. Good luck!

[mlb4e]

Went to the truck stop and weighed it yesterday. I looked up the Michelin recommended tire pressures and at the weight I am at even fudging up hundreds of pounds for "stuff" I can lower to the minimum they list at 80 lbs. Hope it helps. If not I guess I should consider new shocks.