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Old Yesterday, 04:45 PM   #1
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Attempting To Calculate "Real World" max total loaded weight for my Georgetown

I am confused (not that rare a condition for me) trying to figure out the maximum load my motorhome 2014 Georgetown XL 334QS can handle. Ratings are as follows
GVWR 24,000 lbs.
GCWR 30,000 lbs.
GAWR Front 9,000 lbs.
GAWR Rear 15,500 lbs.

Tires are Michelin XRV 255/80R22.5 LR=G, currently inflated to 100 psi
Appears to me the maximum weight for single tire (@110 psi) is 2,360 lbs., and the maximum weight for tire (@110 psi) in dual configuration is 2,180 lbs.

If the above weight ratings are correct it would seem:
Maximum usable load for the front axle is 4,720 lbs., not the rated 9,000
Maximum usable load for rear axle is 8,720 lbs., not the rated 15,500
This then equates to usable GVWR of 13,440 lbs., not the rated 24,000

Hopefully I am somehow calculating incorrectly. Any comments, input, clarification, suggestions, will be most welcome.
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2014 Georgetown XL 334QS (class A with 4 slides)
2013 Smart Car TOAD
Blue Ox Aventa LX tow bar, base plates, diode kit
SMI Stay-IN-Play Duo auxiliary braking system
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Old Yesterday, 04:52 PM   #2
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Quote:
Originally Posted by CA Fisherman View Post
I am confused (not that rare a condition for me) trying to figure out the maximum load my motorhome 2014 Georgetown XL 334QS can handle. Ratings are as follows
GVWR 24,000 lbs.
GCWR 30,000 lbs.
GAWR Front 9,000 lbs.
GAWR Rear 15,500 lbs.

Tires are Michelin XRV 255/80R22.5 LR=G, currently inflated to 100 psi
Appears to me the maximum weight for single tire (@110 psi) is 2,360 lbs., and the maximum weight for tire (@110 psi) in dual configuration is 2,180 lbs.

If the above weight ratings are correct it would seem:
Maximum usable load for the front axle is 4,720 lbs., not the rated 9,000
Maximum usable load for rear axle is 8,720 lbs., not the rated 15,500
This then equates to usable GVWR of 13,440 lbs., not the rated 24,000

Hopefully I am somehow calculating incorrectly. Any comments, input, clarification, suggestions, will be most welcome.

If you have G load rated tires it should be closer to 4400 lbs at 110psi


2360 is closer to an e rated tire
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Old Yesterday, 05:21 PM   #3
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Mr. M. You sir are correct. Your response prompted me to take a second look at the tire sidewalls. It is embarrassing to admit that I had recorded the kg not lb weight rating. The ratings I should have used are 5,206 lbs. for single tire and 4806 lbs. for tires in a dual configuration. This equates to revised tire based front axle load of 10,412 lbs. and real axle load of 19,220 lbs. Now I will play a bit with load ratings at a lower psi (100) to see if I can help soften the ride. Again, thank you for taking the time to respond and for your eagle eyes!
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John & Gloria Hunsaker FROG Member CA-0030-988
2014 Georgetown XL 334QS (class A with 4 slides)
2013 Smart Car TOAD
Blue Ox Aventa LX tow bar, base plates, diode kit
SMI Stay-IN-Play Duo auxiliary braking system
25' Off shore blue water fishing boat
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Old Yesterday, 06:49 PM   #4
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No problem , glad i got one right lol
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Old Yesterday, 07:53 PM   #5
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Tire ratings are always the controlling factor regardless of the axle weigh rating. Ideally you'd always have a higher rated axle than the rating of the tires.

This would keep axles from bending when going over bumps. Better to sacrifice a tire than bend an axle.

Then just keep load beneath tire rating.


Remember the saying: "Why is it that people take up RV'ing to get away from it all then try to take it all with them"?
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Old Today, 02:02 PM   #6
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In a couple of places on your RV you should find a yellow label listing weight info, including CCCC.
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Old Today, 02:11 PM   #7
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So far I have found GCWR, GVWR and GAWR for each axle. My weight distribution is not too bad, however I am going to try and move about 1,000 lbs. of load from the rear axle towards the front of the motorhome, for improved weight distribution and possibly lower tire pressures to improve ride.
I have individual scale weights for each tire position so have data to work with.
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John & Gloria Hunsaker FROG Member CA-0030-988
2014 Georgetown XL 334QS (class A with 4 slides)
2013 Smart Car TOAD
Blue Ox Aventa LX tow bar, base plates, diode kit
SMI Stay-IN-Play Duo auxiliary braking system
25' Off shore blue water fishing boat
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Old Today, 03:04 PM   #8
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Weight Question

For CAFisherman, I read your post on Weight distributions. I have a 2015 Georgetown 352XL with 4 slides also. Two questions come to mind. Are you having trouble with driving as to your weight distribution? Did you try the CHF on your unit. Mine drove me nuts driving before doing the CHF. (Cheap Handling Fix). I truly never felt any difference driving with regard to different tire pressures. (95 thru 105).
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