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11-02-2014, 05:59 PM
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#1
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Winnebago Camper
Join Date: Dec 2013
Location: St. Charles MO
Posts: 44
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Wheel Size
Looked at a 2003 38G Adventurer ad recently on a W-22 chassis and was surprised to see it had 19.5" wheels. How would that handle compared to 22.5" wheels? How does a unit that size end up with the 19.5" wheels?
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11-02-2014, 06:12 PM
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#2
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Winnebago Watcher
Join Date: Jul 2013
Posts: 3
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Quote:
Originally Posted by tmw188
Looked at a 2003 38G Adventurer ad recently on a W-22 chassis and was surprised to see it had 19.5" wheels. How would that handle compared to 22.5" wheels? How does a unit that size end up with the 19.5" wheels?
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I have had both sizes of the tires on a 37 and 38 ft. I found no difference in the ride. However the 22.5 tires were much better when going over
side walks into service stations or parking area's.
If I were to choose: My choice was 22.5 .
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11-02-2014, 08:05 PM
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#3
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Winnie-Wise
Join Date: Oct 2002
Location: Madison, MS
Posts: 450
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Quote:
Originally Posted by tmw188
Looked at a 2003 38G Adventurer ad recently on a W-22 chassis and was surprised to see it had 19.5" wheels. How would that handle compared to 22.5" wheels? How does a unit that size end up with the 19.5" wheels?
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The answer to your question is simple, that is the way WBGO ordered the chassis from WCC. It is also possible that the "ad" is wrong. However, when the W series chassis were "new", quite a few coach builders ordered them with the 19.5" wheels because that is what the coach was designed for, and they had not yet redesigned the house to utilize the "new" 22.5" wheels available on a gasser chassis.
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2016 EC Aspire 42RBQ / 2014 CR-V
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11-02-2014, 08:33 PM
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#4
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Winnebago Camper
Join Date: May 2012
Location: Anacortes, Wa
Posts: 36
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A word of caution regarding larger coaches on the W22. We have friends who just bought a 2005 37' Allegro Bay on a W22. They want to go all the way across the Lower 48 for the holidays. They loaded up and went to the scale and found out they weighed 22,950 lbs. May not be a big deal for some folks but coming from the world of aviation, a limit is a limit to me. Yes, I know about the fudge factor engineers build in.
Keith
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2006 American Eagle 40L, Cat C9
2006 Jeep Wrangler Unlimited Rubicon (Last of the LJ's)
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11-03-2014, 04:21 AM
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#5
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Winnebago Camper
Join Date: Dec 2013
Location: St. Charles MO
Posts: 44
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Quote:
Originally Posted by edgray
The answer to your question is simple, that is the way WBGO ordered the chassis from WCC. It is also possible that the "ad" is wrong. However, when the W series chassis were "new", quite a few coach builders ordered them with the 19.5" wheels because that is what the coach was designed for, and they had not yet redesigned the house to utilize the "new" 22.5" wheels available on a gasser chassis.
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Thanks Ed. I did check with the poster and also seen the tire size in a photo to confirm the size. Would it lower the gross weight limit some, compared to the 22.5" wheels? Heres the ad.
http://www.rvt.com/--2003-Mesa-AZ-ID...l+Lead+Ad+Link
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11-03-2014, 04:46 AM
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#6
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Winnebago Camper
Join Date: Dec 2013
Location: St. Charles MO
Posts: 44
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Ed if you have the time could you explain the weight ratings listed in the ad? GCWR, GVWR, UVW and NCC. Look forward to see what I think some of them mean.
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11-03-2014, 06:39 AM
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#7
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Winnebago Camper
Join Date: Apr 2010
Posts: 32
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Axles have more to do with weight ratings than the tires. You need to look at CCC if you are planning to haul a lot of stuff. The unit shown in the link only had a 1000 pound ccc after fuel and water. Cargo Carrying Capacity
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Pcurt
2007 Fleetwood Bounder 38V
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11-03-2014, 11:03 AM
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#8
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Winnebago Camper
Join Date: Dec 2013
Location: St. Charles MO
Posts: 44
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Quote:
Originally Posted by pcurt23
Axles have more to do with weight ratings than the tires. You need to look at CCC if you are planning to haul a lot of stuff. The unit shown in the link only had a 1000 pound ccc after fuel and water. Cargo Carrying Capacity
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I get that, but is there a relationship with the smaller wheels being on the lighter axles? It seems to me there might be.
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11-03-2014, 12:33 PM
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#9
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Winnebago Master
Join Date: Jun 2003
Location: Palisade CO
Posts: 895
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According to the Workhorse specs published in 2004, 19.5 Michelin tires were an option on the W22 chassis. It does not appear that the axle weight ratings changed when they were used. Note that the Goodyear 19.5 tires were not an option, just the Michelins. Maybe the Michelin's had a higher weight rating?
See HERE to download the WH specs (Word doc file)
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Clay WA5NMR - Ex Snowbird - 1 year, Ex Full timer for 11 years - 2004 Winnebago Sightseer 35N Workhorse chassis. Honda Accord toad.
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11-03-2014, 04:36 PM
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#10
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Winnebago Camper
Join Date: Feb 2014
Posts: 14
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I think the W24 chassis went to 22.5" wheels.
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11-03-2014, 10:05 PM
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#11
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Winnie-Wise
Join Date: Oct 2002
Location: Madison, MS
Posts: 450
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Quote:
Originally Posted by jwoodie
I think the W24 chassis went to 22.5" wheels.
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Yes, ALL the W-24 chassis have 22.5" ONLY, but the W20/w22 were available with 22.5" wheels from the very beginning. That was just ONE of the things that made them "ahead" of the competition, and a reason I bought my first W in 2003.
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2016 EC Aspire 42RBQ / 2014 CR-V
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11-03-2014, 10:17 PM
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#12
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Winnie-Wise
Join Date: Oct 2002
Location: Madison, MS
Posts: 450
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Quote:
Originally Posted by tmw188
Ed if you have the time could you explain the weight ratings listed in the ad? GCWR, GVWR, UVW and NCC. Look forward to see what I think some of them mean.
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The GVWR of 22,000 pounds means it is a W22 chassis, rated to carry UP TO 22,000 pounds on its 6 tires. GCVWR of 26,000 pounds means it is rated to carry AND tow a total weight UP TO 26,000. IOW, if the coach was loaded to its max rating of 22,000, then you should not tow anything heavier than 4,000 pounds. I said "shouldn't" , NOT couldn't .
It gets real confusing when they start "calculating" things like CCC and NCC, but the UVW is supposed to mean the actual weight of the coach, without people, cargo, and only minimal "fluids". I believe some coach builders actually weigh a newly-finished coach with just enough fuel to get it across the scale, and then start adding pounds of water, fuel, propane, people, etc. to help calculate the CCC or NCC. It is mostly marketing hype, IMO.
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2016 EC Aspire 42RBQ / 2014 CR-V
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11-04-2014, 04:16 PM
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#13
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Winnebago Camper
Join Date: Dec 2013
Location: St. Charles MO
Posts: 44
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Thanks Ed, it seems you over load your self really easy on a w-22. So right off the bat your ahead with a w-24 by 2000lbs?
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11-04-2014, 06:06 PM
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#14
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Winnie-Wise
Join Date: Oct 2002
Location: Madison, MS
Posts: 450
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Quote:
Originally Posted by tmw188
Thanks Ed, it seems you over load your self really easy on a w-22. So right off the bat your ahead with a w-24 by 2000lbs?
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Except that a small part of that "extra" GVWR is lost to the slightly heavier weight of the W24 as compared to the W22. I don't remember exactly how much the difference is, probably a couple hundred pounds. BUT, yes the W24 is a "better" chassis than the W20/W22 because of the 4 piston calipers and bigger brakes, for one thing.
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2016 EC Aspire 42RBQ / 2014 CR-V
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11-04-2014, 06:25 PM
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#15
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Winnie-Wise
Join Date: Mar 2014
Posts: 301
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Major advantage of the 19.5 is the coach is lower. Carry capacity of the tire has more to do with load rating than tire size. Bigger tires will be able to carry more but how much more than the rest of the unit is required?
The tire size is not the single determiner of the GVWR of the coach. It is part of the GVWR but so is the frame, axles, springs, etc. While 19.5 may seem small in comparison the 22.5 could be considered overkill.
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Gordon and Janet
Tour 42QD/inTech Stacker
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