Lets talk about the diff between 19.5 and 22.5's on Gassers

[Txsurfer]

Aside from IMO better looks what are the benefits to units with 22.5 wheels on Class A gas units? Can you convert a 19.5 set-up to 22.5's?

[MrWizard]

Chassis weight, tire wear
And no, i don't think you can get 22.5 to fit your 19.5 RV
Unless you want to try and lift it up to look like a Monster Truck

Price is significant higher per tire
Just read some of the tire threads taking brands and pricing

[wolfe10]

Ready2BRetired wrote:
If you choose to convert keep in mind you will be changing your applied axle ratio. Tire diameters are figured in as criteria in determining performance values beyond just the tire capacity ratings.

Yes, read that BIG change in effective rear axle ratio.

[Ready2BRetired]

If you choose to convert keep in mind you will be changing your applied axle ratio. Tire diameters are figured in as criteria in determining performance values beyond just the tire capacity ratings.

[10forty2]

I would think that the 22.5s have a higher weight capacity, but that's ultimately going to be limited by your chassis rating. I would also think that the larger tires would ride significantly better and may wear a little better. As for converting them, there is probably an adapter that would need to be used to attach to the hubs. With that alone, I would NOT want to convert. Anything that needs an adapter becomes a weak point.

[mike_brez]

Carry more weight