Tire Size: 19.5" or 22.5"?

[Pastarr]

Finally getting down to choosing exact model of RV and need a little advice. The models we really like with bunkhouse are the Holiday Rambler Vacationer XE 36D, Fleetwood Bounder 36H, and Thor Challenger 37TB.

All have 22,000 lb chassis but the HR has 19.5" tires the others 22.5" tires.

What is the difference and how important do you think the tire size is?

Thank you!

 

[john owens]

Larger tires can carry more payload. The experts will chime in but I love our Class A with the 22.5"s. Makes me feel like I am driving a heavy duty luxury class MH. Of course they are more money to replace but hey...RVing is expensive any way you look at it. When camping with hookups the other rigs with smaller tires look wimpy and kinda cheap.

 

[legrandnormand]

... and 22,5" tires are mounted on bigger wheels and bigger bearings and do have bigger brakes which to me is the most important.

 

[Gary RV_Wizard]

All other things being equal (rarely the case) 22.5" is better for the reasons others have already cited. However, as long as the 19.5's are rated sufficiently for the specific motorhome's weight (GVWR, axle weights, etc), it really doesn't make any difference. The engineers who put the whole package together hopefully chose tires sized suitably for the task, so that you don't need to worry about it.

On the plus side, the 19'5's will be a bit less expensive when replacement time comes.