Trailer Tire Pressure

[Buzz930]

I pull a 36 ft, 16000 lb trailer. Tire pressure is stated on the side of tire, and it should be inflated to that pressure (110 on mine. ) Just a note or reminder, don't park your rig with the tires on dirt for an extended period of time. The tire will absorb moisture. I had doubts about this until it happened to me, and it costs a lot to repair your rig, and replace that tire. Also watch those tight turns while in a fueling situation. Those tight turns cause the tire to scrunch sideways, and this will also break your tread lose on an older tire.

Just my thoughts.

 

[Foil Freak 1211]

I found an interesting bit of info on the Goodyear website. This is directly from the site:



Industry standards dictate that tires with ST (Special Trailer) designation are speed restricted to 65 MPH under normal inflation and load condition, unless a different speed restriction is indicitated on the sidewall of the tire.



Based on industry standards, if tires with ST designation are used at speeds between 65 MPH and 75 MPH, it is necessary to increase the cold inflation pressures by 10 psi above the recommended pressure for the load.



Do not exceed the maximum pressure for the wheel.

If the maximum pressure for the wheel prohibits the increase in air pressure, then the maximum speed must be restricted to 65 MPH.

The cold inflation pressure must not exceed 10 PSI beyond the inflation specified for the max load of the tire.



This info is on page 8 of the following link: http://www.goodyear.com/rv/pdf/rvbrochure.pdf

 

[Bob Cochran]

Just for your guys info the Michlean XPS I think has a max speed rating of 70 MPH which I do not have an inclanation to exceed.

 

[SnoKing]

Just for your guys info the Michlean XPS I think has a max speed rating of 70 MPH which I do not have an inclanation to exceed.

It has a Q rating 99 mph rating on a truck, and they state a lower 75 mph rating on it in the trailer area of their web site. Side wall still has the Q on it. SNOKING



Holly Queen E. My XPS Ribs were make in United Kingdom! SNOKING

 

[Tractorat]

I found this to be a very interesting chart. Now I know why I dont tow any faster that 60mph. I always thought it was so I could get better gas mileage. Per the chart, my trailer tires are only rated for 65mph. Good to know



RRat

 

[GLASMITHS]

"The cold inflation pressure must not exceed 10 PSI beyond the inflation specified for the max load of the tire. "



What they are saying is you can inflate the tire to 10# above what is stated on the sidewall. There is NO maxium pressure stated on the side wall. It's max weight at ... . psi. Mine are always inflated to 85 and 115 psi. I do let it down to 65/70 when not towing because of the rough roads in LA. The 115 is for the LR G on the trailer.

 

[HBarlow]

Klenger, another question, you still using the brake smart controller? I have thought about one. I wonder about reliability now that they are being made again. I know that a few people had issues with the first go round of the units. It is a very good concept. SNOKING

Snoking:



I'm joining this thread late. You asked Klenger and he answered your question as did one or two others so you probably already have have all the information on BrakeSmart controllers you wanted. If so, please ignore the following. I like to brag on the BrakeSmart so I'll add my comments about my own experience to the mix.



I've lost track of precise odometer readings and events because I transferred the BrakeSmart controller from my previous Ram with 322k miles to the new one which has already accumulated 52k miles. I think I installed the original BrakeSmart on the previous truck when it had around 100k miles on the odometer. I experienced a couple of early quality control issues and the previous company immediately shipped replacements allowing me to return the defective units after receipt of a replacement. If I remember correctly the first unit stuck on some fixed hydraulic pressure and wouldn't release and the second one lost display lighting. I don't remember the odometer reading on the previous truck when the current controller was installed but it was approximately 175k. That controller has been troublefree for approximately 200k miles with approximately 150k of those miles towing. I am very satisfied with my BrakeSmart controller and wouldn't use any other product.



There is no doubt that $400 is a lot of money to pay for a brake controller. If a budget won't allow it it is out of the question. But for those who tow a lot and appreciate good products my advice is spend the money and buy one. You'll love it. Those who argue that an inertia-based or mechanically linked controller is just as good have not experienced a BrakeSmart. A driver simply cannot appreciate the consistent, reliable smooth, precisely controlled and modulated trailer brakes that perfectly match tow vehicle braking and driver demand until they have tried the BrakeSmart. There are additional features that are not claimed but are included in the design. The BrakeSmart protects itself and the truck from wiring problems on old and neglected or unfamiliar new trailers. If a major short to ground occurs the BrakeSmart will protect itself and the truck then can be reset by unplugging it temporarily and then reconnecting it. The BrakeSmart's electronics allow for changing from one to two or three axles or from loaded to empty trailers and back again without any surprises. It simply adjusts to the situation. It's diagnostics also allow monitoring for disconnected, miswired, or other trailer brake problems as well as truck charging system and trailer battery condition. It is a very handy device. If I had to replace mine and the price was even higher I might grumble a little but I'd pay it. There is simply no other brake controller as good.



This truck/trailer tire thread has been one of the more thoughtful, interesting, and informative that I've read. Opinions and experiences reported in this thread differ as is expected but all who have contributed have been informed and experienced.



Harvey

 

[SnoKing]

Harvey, thanks for the report. SNOKING