Hello Folks!We just upgraded from G to H rated 17.5" wheels and tires on our Carriage Cameo. My home air compressor is rated at 125psi max, so I doubt I will be able to get to the recommended (Max) cold PSI in the tires of 125 for my regular tire checks. We're considering a new compressor that has a 200psi max rating. I've found a few options from Lowe's and HD at around $325-$350. Does anyone have a favorite here?I have also considered getting one mounted to my new f350, but I haven't found one that carries the capacity I need and can leave the bed free for other stuff we carry.What do you folks do?ThanksTom

If you look at the inflation chart the tires rated to 4805 each do not require the full 125 pounds. I doubt that you have 19220 pounds of the two axles.Here it is:80 3375 85 3540 90 3695 95 3860 100 4010 105 4180 110 4330 115 4495 120 4650 125 4805(H)

Something else to consider before laying out huge bucks for a high end compressor. My current G614's have not required an air adjustment for 2 years of full timing.We have been in different temperature extremes, put a lot of miles on, and sat in a couple different spots for 3 months at a time.My previous set of G614's were the same, they just never needed air adjustments. Good quality heavy rated tires don't lose air in my experience.

Me again is trying to tell you to go weigh your rig and adjust your tire pressures based upon the weight of the tires are caring. More than likely you do not need 125 psi for the weight, even going five PSI over for a safety factor.

Me Again wrote:If you look at the inflation chart the tires rated to 4805 each do not require the full 125 pounds. I doubt that you have 19220 pounds of the two axles.Here it is:80 3375 85 3540 90 3695 95 3860 100 4010 105 4180 110 4330 115 4495 120 4650 125 4805(H)I ran 107# on my MS with the GY "H" 17.5's and had more capacity than they needed at that pressure. They wore great and ran cool. I would bet these tires had 30K or so.

When coming off the Pismo Beach sand dunes I need to inflate the tires from 30# to 70#. California Air Tools has a robust compressor that easily operates on a 1k watt inverter, no genny necessary.

200psi air compressor | Good Sam Community

19 Replies

rhagfo
Explorer III
May 16, 2015
Cummins12V98 wrote:
Me Again wrote:
If you look at the inflation chart the tires rated to 4805 each do not require the full 125 pounds. I doubt that you have 19220 pounds of the two axles.

Here it is:

80 3375
85 3540
90 3695
95 3860
100 4010
105 4180
110 4330
115 4495
120 4650
125 4805(H)

I ran 107# on my MS with the GY "H" 17.5's and had more capacity than they needed at that pressure. They wore great and ran cool. I would bet these tires had 30K or so.

According to RV guide, 15,999# GVWR, less 20% pin = 12,800# on the axles 12,800/4 = 3,200# ea. tire, so you really only need to inflate to 80 psi. If you went to 100psi, they would carry the entire weight of the 5er+ 16,040#.
ljr
Nomad
May 16, 2015
I carry a CO2 tank. It's good to 250 psi and needs no power.

CO2 tanks
Gib3633
Explorer
May 16, 2015
I agree with C Bears and the reason for that is the heavy bead construction and the high air pressure. Don't get over confident because the seals on screw in valves just get tired and can start leaking. So I don't think he is suggesting you don't need to check. He knows what he is saying because he checks and we all should keep checking.
AH64ID
Explorer
May 16, 2015
If you want a compressor look into the ViAir compressors. Many of them are 150psi rated.

Like others have said be sure to run the proper pressure and not the max pressure., which your 125 psi comprssor will easily handle.
slomark
Explorer
May 16, 2015
When coming off the Pismo Beach sand dunes I need to inflate the tires from 30# to 70#. California Air Tools has a robust compressor that easily operates on a 1k watt inverter, no genny necessary.
Cummins12V98
Explorer III
May 16, 2015
Me Again wrote:
If you look at the inflation chart the tires rated to 4805 each do not require the full 125 pounds. I doubt that you have 19220 pounds of the two axles.

Here it is:

80 3375
85 3540
90 3695
95 3860
100 4010
105 4180
110 4330
115 4495
120 4650
125 4805(H)

I ran 107# on my MS with the GY "H" 17.5's and had more capacity than they needed at that pressure. They wore great and ran cool. I would bet these tires had 30K or so.
Ivylog
Explorer III
May 16, 2015
Me again is trying to tell you to go weigh your rig and adjust your tire pressures based upon the weight of the tires are caring. More than likely you do not need 125 psi for the weight, even going five PSI over for a safety factor.
C-Bears
Explorer
May 16, 2015
Something else to consider before laying out huge bucks for a high end compressor. My current G614's have not required an air adjustment for 2 years of full timing.

We have been in different temperature extremes, put a lot of miles on, and sat in a couple different spots for 3 months at a time.

My previous set of G614's were the same, they just never needed air adjustments. Good quality heavy rated tires don't lose air in my experience.
Me_Again
Explorer III
May 16, 2015
If you look at the inflation chart the tires rated to 4805 each do not require the full 125 pounds. I doubt that you have 19220 pounds of the two axles.

Here it is:

80 3375
85 3540
90 3695
95 3860
100 4010
105 4180
110 4330
115 4495
120 4650
125 4805(H)

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200psi air compressor

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