Got my "G" rated tires on yesterday!!!

Just my two cents - I have had Sailun's for just under two years with about 5,000 towing miles and no problems. Good upgrade after the BlowMax caused $5K damage to my camper.

JIMNLIN wrote:

familyof3 wrote:
I have a question? The tires say max pressure. It doesn't say recommended tire pressure. So do you have to have 110 psi????

These folks have some good input when a trailers axles have been over tired.

rvsafety.com

Tire Load and Inflation Ratings

** Note: Towable – Travel Trailer/ 5th Wheel owners Due to the severe use conditions experienced by tires when axles are very close together – tire industry experts recommend maximum (sidewall) inflation pressure for towable tires unless this causes a sever over-inflation situation (20psi+), often referred to as the ‘basketball effect’. If this is your situation allow a 10 – 15psi safety margin above the minimum required inflation pressure.**

And one big reason we do use max or close to max in this case comes from a tire engineer;

And Tireman9 ........ one of our tire engineers also recommends max sidewall pressures says; from rvtiresafety.com his online tire blog;

**The manufacturers do not take into consideration the side to side unbalance, as to do so would require them to provide larger (more expensive) tires. The other thing RV industry does not take into consideration is the forces to the tire structure due to running close axle spacing. Engineering analysis shows that when turning corners the forces trying to tear the tire apart can be over 20% higher in multi-axle applications than with tires at the corners of the vehicle.
The only options for the trailer owner are to up-size the tires (if there is room) or up-rate and increase inflation (if a higher Load Range tire and stronger wheels are available). Lacking the above being sure to run the tire at the inflation shown on the sidewall (i.e. max) will slightly decrease but not eliminate the overload forces. **

Keep in mind a trucks tires do not operate in the same type severe service as tires on a trailer so tire pressures on the truck can be ran at different pressures.

We agree; a Tire Engineer with Goodyear, (I was enquiring on the G614's) recommended the same to me. Engineer had worked with Continental, so I knew him personally..he also recommended running these tires at 110 psi for same reason you mention in your post. I told him about conversations we've had on these forums and talk of using tire tables to inflate for each tire...He told me to save myself a lot of trouble and just air to max sidewall pressure, (actually same as what HR recommends on the placcard on the 5er....

familyof3 wrote:
I have a question? The tires say max pressure. It doesn't say recommended tire pressure. So do you have to have 110 psi????

These folks have some good input when a trailers axles have been over tired.

rvsafety.com

Tire Load and Inflation Ratings

** Note: Towable – Travel Trailer/ 5th Wheel owners Due to the severe use conditions experienced by tires when axles are very close together – tire industry experts recommend maximum (sidewall) inflation pressure for towable tires unless this causes a sever over-inflation situation (20psi+), often referred to as the ‘basketball effect’. If this is your situation allow a 10 – 15psi safety margin above the minimum required inflation pressure.**

And one big reason we do use max or close to max in this case comes from a tire engineer;

And Tireman9 ........ one of our tire engineers also recommends max sidewall pressures says; from rvtiresafety.com his online tire blog;

**The manufacturers do not take into consideration the side to side unbalance, as to do so would require them to provide larger (more expensive) tires. The other thing RV industry does not take into consideration is the forces to the tire structure due to running close axle spacing. Engineering analysis shows that when turning corners the forces trying to tear the tire apart can be over 20% higher in multi-axle applications than with tires at the corners of the vehicle.
The only options for the trailer owner are to up-size the tires (if there is room) or up-rate and increase inflation (if a higher Load Range tire and stronger wheels are available). Lacking the above being sure to run the tire at the inflation shown on the sidewall (i.e. max) will slightly decrease but not eliminate the overload forces. **

Keep in mind a trucks tires do not operate in the same type severe service as tires on a trailer so tire pressures on the truck can be ran at different pressures.

I have a question? The tires say max pressure. It doesn't say recommended tire pressure. So do you have to have 110 psi????

bigdon68 wrote:
I like my 17.5 J's

bigdon68

We noticed, you said it twice.:D

I used to buy Maxxis, but Kal tire did not have them last time, they installed Carlisle tires on mine I think it was 2010, but will have to check, will be interesting to see how the "G" rated tires do.

azdryheat wrote:


Would be nice if ALL 5ers came with Gs.

Depending on the weight of the 5th, Gs may be overkill, and Es will do just fine.

However, take a true step up.....
It would be nicer if heavy 5ths all were equipped with *17 inch* wheels & tires from the factory.

More (quality) tire options available..:C

.

abc40kids wrote:
So I've taken two trips on the E rated tires with no issues, all pretty short trips with no high speeds and air at 80psi. I got the G dates Saliun's on yesterday and what a big difference they make! Went from a 235/80-16 to a 235/85-16 like I had on my previous Cardinal. No squat in these tires like the ones that came on it and yes the wheels are stamped 110psi and changed to metal valve stems. Another plus is getting out of my driveway..... My rear 6 point level will hit the concrete without boards, this tire will help a little.

I feel so much better with these tires, the E rated ones were pretty much maxed out when I left my driveway.

Good to hear. My 5th wheel is really too heavy for E rated tires.. I would like to go with G tires. But I don't know if the wheels would take the 110 psi.

Do your rims have 6 bolts or 8 bolts? Does anyone have G rated tires on 6 bolt wheels?

thanks ken

cgaskins wrote:
I have had my G rated Sailuns since October. Seem to be very well constructed. Much heavier and thicker than the POC TowMax tires that came on my new Heartland.

did you have to go with a higher profile sailun? I have the cyclone 4018 and I'm not sure I have the clearance between tires to step up to 235R 85. What was your experience with clearance on the Heartland?

I bought 2 Sailuns yesterday as spares for my 614s. For both of them, mounted with steel valve stems was $278 at NTB here locally. Have wanted them for a while as they will be the same weight rating and diameter as my GYs and more piece of mind than the crappy bombs.

abc40kids wrote:
So I've taken two trips on the E rated tires with no issues, all pretty short trips with no high speeds and air at 80psi. I got the G dates Saliun's on yesterday and what a big difference they make! Went from a 235/80-16 to a 235/85-16 like I had on my previous Cardinal. No squat in these tires like the ones that came on it and yes the wheels are stamped 110psi and changed to metal valve stems. Another plus is getting out of my driveway..... My rear 6 point level will hit the concrete without boards, this tire will help a little.

I feel so much better with these tires, the E rated ones were pretty much maxed out when I left my driveway.

WOW, how heavy are the 5er axles in your siggy?