How important is tire size to your selection?

Bumpyroad wrote:

Mondooker wrote:
If I’m reading you right, the 22 is better and holds more weight. But the 19 has been around a long time and does fine if additional weight isn’t a factor?

I think you have to go back to the old chevy P-30/32 chassis to get to units that had too much weight on the front tires/end. I remember some of the write ups the units were overloaded if there was a passenger in the front passenger seat. don't remember if that was a tire or chassis issue however.

great engineering, put in a puny front end, put two chassis batteries about as far forward as possible, and stick some balloons in the springs to take the weight.
bumpy

Here's the issue for me. For example: My current Class A (a 1999 30' on a Ford F-53 chassis) has 19.5" tires/wheels and an 18,000 GVWR. It weighs under 16,000 lbs. fully loaded, fueled, and, watered, so, I have over 2,000 lbs. discretionary payload. That year, you could buy the same motorhome on a Chevy P-XX chassis that has a GVWR of 15,400 lbs. It had 16.5" wheels/tires. If I had my same motorhome on the Chevy chassis, I would be over maximum gross weight with NO discretionary payload. In my travels, I found the exact same motorhome as mine but on the Chevy chassis. IMO, it looked kind of silly with the smaller wheels/tires and the front suspension looked SEVERELY overloaded. (kind of like a big dog with two broken front legs) The current owner told me the front suspension/tires were always a problem as was the front axle overloading condition.

Larger wheels also allow the use of larger brake rotors and higher ground clearance. (a good thing in a MH)

Chum lee