Lets talk about the diff between 19.5 and 22.5's on Gassers
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โDec-19-2017 06:27 AM
2015 Livin Lite Axxcess 24FBA
2016 Honda Pioneer 1000-5 Deluxe
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โDec-21-2017 07:36 AM
Txsurfer wrote:
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?
It's always better not to have or need max pressure to match the inflation chart axle weights and especially if you add 10-15lbs or so, for a cushion, like I do.
Hence, the larger tire, may be required to achieve this. Other than that, I don't really see the benefit.
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โDec-21-2017 06:42 AM
Ava wrote:Amen
I dont think the chassis engineers design and determine weight limits, gear ratios and wheel sizes by throwing darts at a picture of each.
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โDec-20-2017 01:55 PM
2015 Livin Lite Axxcess 24FBA
2016 Honda Pioneer 1000-5 Deluxe
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โDec-20-2017 08:40 AM
16k-20k GVWR - 19.5 wheels, 50 degree wheel cut.
22k GVWR - offers both wheel sizes: 50 Degreesโ19.5 42 Degreesโ22.5
24k-26k - 22.5 wheels, 50 degree wheel cut
I would suspect if you converted a 16k-22k to 22.5s you would go back to 42 degrees wheel cut. I suspect the 22k optionally puts a cut limiter of some sort on the 22.5s. If you just converted, perhaps it would scrub? Perhaps the bolt pattern conversion part would push the the wheel out an inch to match the wider track of the 24-26k chassis and you would be fine.
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โDec-20-2017 04:56 AM
Really, in many cases you don't have much of a choice, anyway. Once a coach gets beyond a certain weight, size range, its going to have 22.5" tires to safely handle the weight. You really don't have a choice when you go beyond a certain point, weight wise.
One thing I really, really like about our coach and its 19.5" tires: They are soooo much easier to work with, if you ever want to remove a tire or change one yourself! Literally, I can change one by myself, with only simple tools - bottle jack, right size wrench/socket, and a 'breaker bar' to bust the lug bolts loose and help move the tire around once its off. Thats it. You won't do that with a 22.5" tire, without much more expensive (and not very portable) tools, and just about needing two people to do it. Also, if you ever decide to carry a spare, you can do so muuuch easier with 19.5" wheels/tires than 22.5".
With that said, tire size wouldn't be a deal breaker for me either way, provided the tires are sized correctly for the weight involved. I would just accept that if I one day decide to step up to a bigger, heavier coach, part of the price for that would be I'd have to deal with more expensive, more difficult to work with, 22.5" tires.
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โDec-19-2017 04:04 PM
IRV2 Changing from 19.5 to 22.5 wheels and tires
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โDec-19-2017 01:36 PM
As for the conversion, probably not one of the best decisions one could make.
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2006 Jeep TJ and 2011 Chevy Traverse Tows
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โDec-19-2017 01:34 PM
mike brez wrote:
Carry more weight
on a chassis designed for those tires, sure. but can the GVWR of a chassis be increased just by swapping 19.5 tires for 22.5 tires? I'm no expert but that doesn't sound right. seems to me that there more components of the chassis would be involved in calculating the GVWR of a chassis than just the tires.
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โDec-19-2017 11:46 AM
bumpy
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โDec-19-2017 09:43 AM
Ava wrote:
I dont think the chassis engineers design and determine weight limits, gear ratios and wheel sizes by throwing darts at a picture of each.
It does appear on RV trader that some models are offered in either 19.5 or 22.5 - mainly on the mid-tier products.
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โDec-19-2017 09:25 AM
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โDec-19-2017 08:42 AM
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โDec-19-2017 08:13 AM
Cons: higher cost, heavier weight (which makes it much harder to change a tire in the case of a flat, as well as having some performance penalties that probably don't amount to too much on a motorhome), larger size makes storing a spare rather more difficult.
Many 22.5 setups use a much higher lug not torque than smaller tires and wheels, too, which in turn requires significantly heavier duty tools to manipulate.
Different, but not necessarily pro or con: the diameter is larger, which means a different effective axle ratio, more ground clearance, a higher center of gravity, and possibly interference with the wheel wells or fenders (probably most likely in front).
I would not convert a motorhome I had.
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โDec-19-2017 07:43 AM
2004 Winnebago Adventurer 31Y
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