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Old 08-19-2016, 07:24 AM   #1
BlueThunder34
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PSI Rating on Factory 2016 Cougar Wheels

I've looked all over the back of the wheel and cannot for the life of me find the max PSI rating stamped on the wheel of our 2016 Cougar 28RBSWE? Does anyone happen to know what the max PSI rating is for these alloy wheels? I am wanting to ditch the stock trailer king tires for the Carlisle trail HD that are E rated with an 80PSI inflation but want to make sure that is not too much for this wheel. Thanks for any help!!
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Old 08-19-2016, 09:12 AM   #2
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If you look on the back surface of the wheel, you should find a "cast in the spoke" load rating. On my wheels, the load rating is exactly the weight rating for LR E tires at 80 PSI.
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Old 08-19-2016, 10:09 AM   #3
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Thanks, I'll give it another look inside the spokes.
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Old 08-19-2016, 11:57 AM   #4
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You'll probably find two "max load" ratings. Looking at the spokes, you'll see on one spoke "5H 114.3" followed on the next spoke with "max load" followed on the next spoke with "2150 LBS" which corresponds to the "max load for 205 75R15 LRD or 225 75R15 LRC tires. This is the "max load" for the wheel when "drilled for a 5 lug configuration.

On the next spoke you'll find "6H139.7" followed on the next spoke with "max load" followed on the next spoke with "2830 LBS". This is the "max load" for the wheel when "drilled for a 6 lug configuration". This "2830 LBS" corresponds to the 225 75R15 LRE maximum load. So the wheel is "rated to carry 2830/80 PSI" in the 6 lug configuration and "rated to carry 2150/65 PSI" in the 5 lug configuration. I don't have any engineering data to explain the differences in weight ratings, but I'd suspect it has to do with the amount of "lug/spoke support" differences between 5 lugs and 6 lugs much more than it has to do with the ability of the wheel structure to support 65 vs 80 PSI.
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Old 08-19-2016, 12:35 PM   #5
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That's very helpful, thanks. Looks like I have the 6 lug 80psi rated wheels, no excuse not to get the Carlisle Trail HD's now. I keep flip flopping back and forth on spending $600 on new tires when the TK are still new but far too many horror stories to not and in reality is cheap insurance compared to a blow out. However it still just seems wrong to pull off brand new rubber to put more new rubber on
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Old 08-19-2016, 01:10 PM   #6
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My recommendation, pull them off, put on some tires you know have enough "reserve capacity" to protect you from the "bare minimum" that Keystone installed. If your "may pops" are still relatively new, you should be able to get $25-50 each for them. That would offset your replacement costs, give you better tires and get rid of the "crap" all at the same time LOL
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Old 08-19-2016, 04:20 PM   #7
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Lol, good idea
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Old 08-20-2016, 10:32 AM   #8
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That's very helpful, thanks. Looks like I have the 6 lug 80psi rated wheels, no excuse not to get the Carlisle Trail HD's now. I keep flip flopping back and forth on spending $600 on new tires when the TK are still new but far too many horror stories to not and in reality is cheap insurance compared to a blow out. However it still just seems wrong to pull off brand new rubber to put more new rubber on
Carlisle 235/80/R16 LR E going on Tuesday. Mounted, balanced, installed $97 each. I preferred the LR F ~ 235/85/R16 ~ but they require 95 PSI.
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Old 08-20-2016, 10:48 AM   #9
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Carlisle 235/80/R16 LR E going on Tuesday. Mounted, balanced, installed $97 each. I preferred the LR F ~ 235/85/R16 ~ but they require 95 PSI.
That's a good deal! I just got mine installed this morning @ DT for $111 each installed. I couldn't be happier, love the tires went from D LR to an E LR so a little more breathing room and a much better quality tire than the TK's. I was also very impressed with the service at DT, I showed up at 0800 for my appointment with the trailer and they had me back on the road at 0835.
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Old 08-20-2016, 11:35 AM   #10
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BlueThunder34,

I'm sure you will feel much more confident when towing now that you've got tires that give you enough "reserve capacity" to relax a bit.

Now that you've towed it home, don't forget to retorque the lug nuts and, about 50 miles into the next trip, retorque them again. Then, before each "trip" check them until you "know" the lugs aren't moving when torqued.

I just do mine before each trip starts and every morning before we leave the CG. Once you get the hang of it, it only takes a couple minutes.
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Old 08-21-2016, 08:31 PM   #11
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Originally Posted by BlueThunder34 View Post
I've looked all over the back of the wheel and cannot for the life of me find the max PSI rating stamped on the wheel of our 2016 Cougar 28RBSWE? Does anyone happen to know what the max PSI rating is for these alloy wheels? I am wanting to ditch the stock trailer king tires for the Carlisle trail HD that are E rated with an 80PSI inflation but want to make sure that is not too much for this wheel. Thanks for any help!!
I looked up my Sendel wheels on their site after not finding a PSI on the wheels, just a weight rating. 94 PSI, according to Sendel for my 235/80-16 LRE shod, stock wheels.
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Old 08-30-2016, 10:10 PM   #12
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That's a good deal! I just got mine installed this morning @ DT for $111 each installed. I couldn't be happier, love the tires went from D LR to an E LR so a little more breathing room and a much better quality tire than the TK's. I was also very impressed with the service at DT, I showed up at 0800 for my appointment with the trailer and they had me back on the road at 0835.
The Carlisle 235/80/R16 LR E are sidewall stamped 95 PSI. The 235/85/R16 LR F are also stamped 95 PSI. Next tire change I'll go the LR F as they are only $7 more each and have an additional 120# per.
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Old 08-31-2016, 06:51 AM   #13
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The Carlisle 235/80/R16 LR E are sidewall stamped 95 PSI. The 235/85/R16 LR F are also stamped 95 PSI. Next tire change I'll go the LR F as they are only $7 more each and have an additional 120# per.
You should take a picture of that LRE Carlisle tire with the 95 psi max pressure on it's sidewall and send it to Carlisle. It's a major error and should be reported to them for correction.
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Old 08-31-2016, 07:08 AM   #14
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There is no telling what is physically molded on the tire, but the Carlisle website does show an 85PSI rating for the Radial Trail RH 235 80R16 LRE tire. All of the 85 series LRE tires are 80 PSI and the LRF is 95PSI.

Interesting to note that the Radial Trail HD (newest version) shows the 235 80R16 LRE as 80PSI (not 85PSI). The LRF tire is 95PSI like the Radial Trail HD series tires.

Is it possible that the tires you have are Radial Trail HD and you "misread" the 85 as 95 ???
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Old 08-31-2016, 07:41 AM   #15
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There is no telling what is physically molded on the tire, but the Carlisle website does show an 85PSI rating for the Radial Trail RH 235 80R16 LRE tire. All of the 85 series LRE tires are 80 PSI and the LRF is 95PSI.

Interesting to note that the Radial Trail HD (newest version) shows the 235 80R16 LRE as 80PSI (not 85PSI). The LRF tire is 95PSI like the Radial Trail HD series tires.

Is it possible that the tires you have are Radial Trail HD and you "misread" the 85 as 95 ???
It is also possible that the 85 PSI for a LRE tire on Carlisle's web site is in error. The TRA says 80 PSI is the maximum for LRE tires.
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Old 08-31-2016, 11:18 AM   #16
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My 225/75/15 LRE Carlisle HDs have 80psi Max stamped on them
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Old 08-31-2016, 03:24 PM   #17
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My Carlisle RH tires also have 80 PSI molded on the sidewall. They are 225 75R15 LRE also. It's possible the website has an error (80 vs 85) but with CaptnJohn's comment that his 235 80R16's had 95PSI molded on his ???
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Old 09-03-2016, 08:04 AM   #18
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According to the Keystone specs for your trailer it should have two 4000# GAWR axles. Your original tires provide 5080# of load capacity. Unless you’re way overweight they should last the estimated 3-5 years without a problem. Internet shock treatment does not apply to everyone. Keystone has properly shoed your trailer. Being a 2016 model I’ll take even money the tires have speed letters on them for something over 65 MPH.

There are always questions about rim load capacities and air pressure ratings. Rims are not required to display their load capacity or PSI rating. Tire manufacturers must provide a list of rim size (example; 15x6”) for every tire they manufacturer and provide that listing to the public on request. The DOT marking on the rim is a certification symbol the rim manufacturer puts on there to show everyone that the rim meets all standards for it’s size. Rim’s are actually certified for load capacity/Air Pressure Ratings by the SAE.

Tire manufacturers must insure each of their tires are fitted to an appropriate rim. It’s a collaboration between rim and tire manufacturers. The tire manufacturer looks-up the specs for an applicable rim size and load/pressure requirement for the tire to be properly fitted to.

Rims provided by an OEM providers may display two load capacities, depending on the rim’s configuration (5 hole - 6 hole). Air pressure ratings will coincide with the load capacities of the rim unless otherwise marked.

Some rim manufacturers will put load/PSI ratings on their rims. Hardly ever in an easy to find location.

The first place to look for rim specs is the internet. Most of the major brands used as OEM will be there with specs. The next choice is to call them. The rim MUST be marked with their name and part/model numbers.

Tire industry standards - I know, I always bring that up - for all major tire retailers/tire installers always say to insure the tire is suitable for fitment to the rim size and it’s air pressure/load capacity ratings. For instance, almost all rims for the popular ST235/80R16E tires are going to be rated at 3580# at 80 PSI (max). Even though an upgrade to the ST235/85R16E may be desirable to gain the extra load capacity of 3640# 80 PSI the rim does not provide that much load capacity. The tire person says it will work, yeah, right, put it in writing.

When options are offered such as the LT235/85R16G (Trailer Only Tire) the OE tires may be mounted on rims suitable for the OE tire and the optional tire. Problem is the rim may not be the proper size. At a large RV show earlier this year I checked all trailers with such options. Some RV trailer manufacturer’s got it right and others did not. That LRG tire has a minimum rim width of 6.5”. The industry says it’s a no-no to use the smaller 6” wide rim.

Back to that “tire industry standards thing”. First there are long lists of government regulations the vehicle manufacturer must navigate to vehicle certification. All of them are binding on them. In pops the TRA, RMA and a long list of other tire & rubber industry originations to develop every day safety standards for the maintenance people in that vast industry to abide by. And, for the most part, they do. Are they binding? Probably when push comes to shove. It’s like the debate about tire pressures. There is a right way or wrong way or foggy way. If someone continuously steps out of line there is a chance a catastrophic thing happens that will cause some serious personal injury. When it is proven that an owner always under inflated his/her tires causing the catastrophe, someone will find that out and use it to pursue an at fault judgment against that owner.

p.s. OOPS! too late.
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Old 09-03-2016, 05:21 PM   #19
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Not sure if my mind was on the LR F Carlisle tires or a fat finger. The 235/85/R16 LR F are stamped 95 psi (I will probably go there next time) The 235/80/R16 LR E I just had installed are stamped 85 PSI ~~ not 80. Did not find a PSI stamped on the rim inside, on spokes, or hub.
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