Rating for tires...

SuiteWheels · 09-08-2007, 11:56 AM

D/H is wanting to know if folks still run 125psi all the time on the 17.5 tires?

sigo'suite · 09-08-2007, 12:42 PM

Yep, for sidewall integrity, they recommend carrying maximum 125 P.S.I. regardless of the load relative to the total load capabilities of the tire.

rverdlm · 09-08-2007, 08:43 PM

I do 125 for the reasons mentioned!

RGordon · 09-08-2007, 08:54 PM

I maintain 125 psi in my 17.5's all the time.

bstark · 09-08-2007, 08:57 PM

Same here for the above stated reason. Sidewall flex will give you a better ride but at the expense of increased heating of the tire

no thanks! Keep 'em at 125 cold.

Motor31 · 09-09-2007, 09:26 AM

Mine are kept at 125 all the time. No issues with uneven tread wear and they stay pretty cool when going down the road.

billr · 09-09-2007, 07:08 PM

Same as all above!! For all the same reasons.

Cheers,
Bill

rdunk · 09-10-2007, 01:26 AM

re: all of the above--------

It is interesting that we RV'ers become so smart that we begin to know more about things like tire inflation than does the tire manufacture -

Seriously, as at least some of you know, Goodyear provides load/inflation tables for their tires, including the 17.5 inch follower trailer tire. Goodyear does recommend various inflation amounts on this tire, depending upon the actually load to be carried by the tire. Of course, we RV'ers each must decide for ourselves what PSI's we want to carry, if our actual loads are significantly under the tire max load rating.

Using the Goodyear tire inflation chart, and my load weights, I determined my actual tire loads are significantly under the max load rating. I calculated that I could significantly reduce my tire PSI, and still have a very very safe tire load margin. But, after going through all of the numbers, I finally decided to just reduce my tire inflation from 125 psi to 120 psi. Not very scientific, but I am more comfortable at not being at the absolute max tire PSI. Then, that is just me, .........and Goodyear!

Good luck!

billr · 09-10-2007, 09:08 AM

Gee wiz Robert, a whole 5 psi! You rebel!!

I do understand what your saying about those inflation tables, and it may be completely safe running those pressures, but I would rather run them at the max cold rated pressure for an extra level of protection. It will certainly not cause any damage and may help keep the temps down a little bit. High temps are one of our worst enemies.

Cheers,
Bill

sigo'suite · 09-10-2007, 10:28 AM

Quote:

Originally Posted by rdunk

re: all of the above--------

It is interesting that we RV'ers become so smart that we begin to know more about things like tire inflation than does the tire manufacture -

Good luck!

Rebel Robert, I like that!!

I think we have a new moniker for you Robert.

I first had mine inflated to 120 when installed at Good Year. A good friend of mine who also has these tires did the same; but after some passing of time decided to contact Good Year and the local District Rep. for Good Year answered his call and said that they felt it better to maintain the 125 max pressure stated on the tire. Thusly, I inflated mine to the max 125 and intend to maintain that pressure.

In another conversation with a fella who has these tires and has the Pressure Pro system he found that the tires pressure increased to almost the same max P.S.I. (i.e. 139 to 140)while travelling when the tires were at 120 as when at 125; which tells me that there is something going on to cause the added increase in P.S.I. at 120. This information is in fact what prompted the entire scenario related above.

As for trusting Good Year's judgement, I will have to take a pass. Only reason I stayed with them is because of their willingness to take responsibility, most of the time, when there is a failure with their product; If not for that, I would have gone with another brand.

sigo'suite · 09-19-2007, 09:25 PM

Interesting sideline:
Staying in a park this week across from a fella with an '05 Carriage which came with OEM Good Year G114 17.5" tires and asked him what pressure he carries in them and he said 110 PSI as recommended by the "TRAILER" manufacturer!!!!!!

Go Figure!!!!!

He also had some really unusual tire wear which was obviously caused by an axle not in alignment. He was taking it to a shop locally to have realighment done.