Tires.... Keep for awhile or get them off???

Hiking Hunter wrote:
abc40kids -

I think your new Mountaineer has the same wheels as my High Country. There is not a max air pressure stamped on the wheel, but there is a max load of 3580 lbs stamped on it. The max load correlates to the max pressure. That equates to approx 105 PSI for the max air pressure (3580/3750 = 105/110). So, I wouldn't run them at 110; your trailer load doesn't need that anyway. The max load at 105 PSI = approx 3400 lbs, plenty enough for your trailer.

By-the-way, Goodyear says you can actually run that tire as low as 75PSI! I wouldn't do that, though, especially on a tandem axle trailer where you drag the wheel sideways in a tight turn sometimes.

I installed G614s on my High Country several thousand miles ago; I run them at 95 PSI. Haven't had any problems, although now I feel like the selection of that tire was probably way overkill. If I had to do it again, I may go with the Michelin XPS RIBS. I had real good luck with them on my last fiver.

The only downside to a G rated tire is you have to have a more powerful air compressor to air them up with. The one I had at home will barely do it. I also keep a portable compressor with me on the road. I had to replace mine with one that would do the higher pressure.

Whatever you do, replace the valve stems with a high pressure metal one when you re-tire. The rubber one the Keystone supplier uses is junk; it will dry rot in a few years and it's not rated for the pressure. In fact, replace them even if you decide to stay with an 80lb tire like the Michelin XPS RIB.

I'm running the LT235/85R16s. Clearances are no problem.

abc40kids wrote:

Me Again wrote:
Actually the diameter of the G-614 should be real close to the ST235/85R16E. the Sailun S637 is about an inch larger in diameter. Chris

What I've got now is a 235/80r16 Towmax (30.8") looking to go 235/85r16 G-614 (31.7") with 6 inches between the tires I should be fine.

abc40kids wrote:

Me Again wrote:
Actually the diameter of the G-614 should be real close to the ST235/85R16E. the Sailun S637 is about an inch larger in diameter. Chris

What I've got now is a 235/80r16 Towmax (30.8") looking to go 235/85r16 G-614 (31.7") with 6 inches between the tires I should be fine.

Me Again wrote:
Actually the diameter of the G-614 should be real close to the ST235/85R16E. the Sailun S637 is about an inch larger in diameter. Chris

Mile High wrote:

abc40kids wrote:
Goodyear G-614's will be put on.... I'll contact Keystone just to see if the wheel will hold 110psi or it might be stamped on the back of the wheel. I'm wanting to ask Keystone what they were thinking in the first place.

I tried with the dealer but I'd haggled them to death already and being a tire dealer I knew I'd be using the g-614's anyway. I had them check to see if the max air was put in and rolled out, 90 min ride never over 55.

Amazing how the G's look compared to the E's and as I left the dealer I looked at the Grand Design Solitide, another heavy 5er and found the same E tires.

You can probably find your wheel here

Tredit Tire and Wheel

Thanks, I called them and they said my wheel is rated at 3750 and will hold the 110psi. The tire I want to use is the 235/85r16 Goodyear G-614 which is only an inch taller. I've got 6 inches between my tires now, I should be fine. Thanks again...

as I think Keystone still uses them. If you spot it, you can look up the spec. They won't give you psi anymore, but if its rated for 3,750 lbs load its rated for 110psi. Some of the 3,500 lb load wheels are only rated up to 90 psi.

abc40kids wrote:
Goodyear G-614's will be put on.... I'll contact Keystone just to see if the wheel will hold 110psi or it might be stamped on the back of the wheel. I'm wanting to ask Keystone what they were thinking in the first place.

I tried with the dealer but I'd haggled them to death already and being a tire dealer I knew I'd be using the g-614's anyway. I had them check to see if the max air was put in and rolled out, 90 min ride never over 55.

Amazing how the G's look compared to the E's and as I left the dealer I looked at the Grand Design Solitide, another heavy 5er and found the same E tires.

abc40kids wrote:
Goodyear G-614's will be put on.... I'll contact Keystone just to see if the wheel will hold 110psi or it might be stamped on the back of the wheel. I'm wanting to ask Keystone what they were thinking in the first place.

I tried with the dealer but I'd haggled them to death already and being a tire dealer I knew I'd be using the g-614's anyway. I had them check to see if the max air was put in and rolled out, 90 min ride never over 55.

Amazing how the G's look compared to the E's and as I left the dealer I looked at the Grand Design Solitide, another heavy 5er and found the same E tires.

Me Again wrote:
You can play Russian roulette, or install G614's or Sailun S637's. Chris