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

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....