After 2 blowouts - what is the optimum tire pressure?

I had the 250 DA, ran the max cold press. for those tires i had, 50 PSI, and no problems. My 280 DA however has 65 max cold PSI, and i run them there w/no problems.
 
Thanks, Dennis, I'll pass the compliment along to my able-bodied first mate!
I didn't notice any rot, but there were rips along the sidewalls of both those tires, like the tread had separated from the sidewall portion. The tread had also separated from the inner part of the tire as would be indicative of a blowout, that's what it looked like, as opposed to a puncture or slash.

Regarding the swim platform, haven't really thought about it, we haven't had a problem getting in and out of the boat or water. How much extra does it add?

Firecadet: I bought load range D, which supports around 2500 lbs, which should be enough for this boat on a tandem axle trailer.
I bought one of those last year, I'll put it in my boat for road trips & everyday use!
 
Another vote for max cold inflation listed on the tire. Since you have blown 2 tires there is a possibility the tires that remained were overloaded during the blowouts. I have seen the remaining tires last a very short time after the initial blowout on that side of a trailer. You definitely want to carry spares and be prepared.
 
I found it interesting reading several comments about putting "E" rated truck tires on the trailers. I tried to do that in WA and nobody would do it. I checked with several different tire stores and they all said the same thing. Apparently there is a difference in the tire bead between trailer tires and truck tires and they all refused to mount truck tires on the trailer rims.
 
shuizen said:
Another vote for max cold inflation listed on the tire. Since you have blown 2 tires there is a possibility the tires that remained were overloaded during the blowouts. I have seen the remaining tires last a very short time after the initial blowout on that side of a trailer. You definitely want to carry spares and be prepared.
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I replaced all 4 the day after the 1st 2 blew, thinking that it was time to do so. I returned to the tire store & had them inflate to the max pressure.
I've made it to & from Lake Erie one time since that incident, no more problems.:smt038
 
Gofirstclass said:
I found it interesting reading several comments about putting "E" rated truck tires on the trailers. I tried to do that in WA and nobody would do it. I checked with several different tire stores and they all said the same thing. Apparently there is a difference in the tire bead between trailer tires and truck tires and they all refused to mount truck tires on the trailer rims.
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I never heard that there was a difference between truck and trailer rims but the Firestones on my trailer are E rated trailer tires. My personal belief is that truck tires should not be used on a heavily loaded trailer.
 
The last trailer tires I had mounted were very tight to the rim.....it took 40psi for the bead to pop out on the rim! We stood back a bit till it popped and the rims were soaped. I run 45psi in them. I've never seen that when mounting truck tires. The tires were 14" Marathon/Goodyear radials on my CV-23 trailer (3500lbs). I have 16" "E" LT radial truck tires on my 270 trailer at 80psi (12,500lbs). They are brand new put on by previous owner and seem to work great for the 500 miles I have used them, Mike.
 
I picked up my new to me 99 210SD in Tampa last month. I purchased a brand new Peterson aluminum trailer and had everything fitted and checked before I left for the 600+ mile trip back to NC. The trailer builder said 44lbs is where he would run the load range E tires so that's what I did. It pulled fine but felt a little soft when changing lanes and on uneven pavement. I figured that maybe that is how a torsion axle trailer felt, having never pulled one before. Yesterday I made about a 110 mile round trip over some very curvy and windy mountain roads to Douglas Lake in TN. Before I left I moved all 4 tires up to 48lbs. The difference was like night and day! It pulled true and had no soft fishtailing like before. I finally felt comfortable in even the worst of the narrow bridges and curvy roads.

There's still one bridge left on the way where the passenger side guide-on ran about 4-6" off the bridge rail with my left tires borrowing just a bit of the double yellow. The margin for error is slim and I'm glad to be pulling true now.
 
How timely. Last night I blew my first tire on a trailer in 15 years of towing – good thing it was still light out as I watched the “rubber fly” otherwise I probably would have destroyed the wheel/rim and had “sparks flying”. I am running the Goodyear Marathon ST225/75R15 (D) on a dual axle Heritage trailer (tows the 290 Sundeck at approx 10K lbs. for boat/trailer/gear). These tires have about 3.5 seasons on them with >16K miles on them. I always keep at full pressure per the tire specs – 65 lbs. when cold. I had just checked them at a gas stop and 15 minutes later it blew. This heat is brutal on tires!! – no matter the manufacturer. Looking at the tire, the roadside service team agreed that blow out was most likely heat related after checking brakes and other tires. I plan on replacing the other 3 now and getting back to 4 fresh tires – planned to go with the Marathon’s again as all of the manufacturers seem to have positive/negative reviews.
 
zboaterctf said:
How timely. Last night I blew my first tire on a trailer in 15 years of towing – good thing it was still light out as I watched the “rubber fly” otherwise I probably would have destroyed the wheel/rim and had “sparks flying”. I am running the Goodyear Marathon ST225/75R15 (D) on a dual axle Heritage trailer (tows the 290 Sundeck at approx 10K lbs. for boat/trailer/gear). These tires have about 3.5 seasons on them with >16K miles on them. I always keep at full pressure per the tire specs – 65 lbs. when cold. I had just checked them at a gas stop and 15 minutes later it blew. This heat is brutal on tires!! – no matter the manufacturer. Looking at the tire, the roadside service team agreed that blow out was most likely heat related after checking brakes and other tires. I plan on replacing the other 3 now and getting back to 4 fresh tires – planned to go with the Marathon’s again as all of the manufacturers seem to have positive/negative reviews.
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Do yourself a favor and do a lot of reading on the Marathons vs Maxxis E rated. My rims said on the inside 80psi max so I changed the stems to metal and run 80psi. Made my trip two weeks ago to Miami with no problems for the first time:smt038 The Maxxis are just a little more but well worth it! I scaled my set up (weight slip posted here somewhere) only to find out that my boat and trailer fully loaded is 14 and change:wow: The Maxxis tires are rated for 2830# each! I'm a believer in using tires well above what is required to keep the heat in check. I towed over 600miles all together with no issues! My outside temps were 96-98 and I towed 65-70mph. That wouldn't happen with the Marathons or Carlisles.

6e0f5a21.jpg
 
firecadet613 said:
What load range tires do you have? I run load range E at the max cold PSI and never have a problem.
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No Problems ?????????

firecadet613 said:
Can't seem to find any decent tire in the 225/75/R15 size. My Gladiators are bulging at the sidewalls, one burst on me already, and I've only had them 2 years.
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I always go up a class rating, and prefer LT radial to bias as they run cooler. And ALWAYS run at max inflation as noted on tire.

China made tires are junk, but it is getting almost impossible to find trailer tires that aren't made there. LT tires work fine as long as you watch the load ratings.

Have you ever noticed all the RV's you see on the side of the road? Yep cheap china tires, and probably under inflated too.

And if your tires are over 3-4 years old, you are taking a chance, regardless of what the tread looks like.
 
Maxxis tires are built in Thailand. Goodyear Marathons are built in China. I had a set of Marathons that were 7 years old, but, had not been run in the last couple of years. They were made in Australia. The tires were D rated tires and it was stated on them that the build was 6 plys in the tread and 2 in the sidewalls. The new tires built for Goodyear were made in China and are also D rated. The build on them says 5 plys in the tread and 2 in the sidewalls. Enginnering on the tire build has apparently changed to get more strength with less plys. I have run both sets of tires for extended distances (2200 miles R/T) on a tandem axle trailer and not had a problem. Maybe the Maxxis tires are better, I don't know. The consensus appears to indicate that they are. Carlisles appear to be just plain dangerous.
Other than make of tire, I do think that a lot of it has to do with proper tire inflation, weight distribution, adhering to weight load limits and not abusing the tires by running too fast, curbing, twisting or letting them get too hot.
Fortunately for me, I have never had a tire blow out (knock on wood).
Most of the issues that I have had involved wheel bearings causing problems.
Maxxis has a tire inspection chart on their website: http://www.maxxis.com/Repository/Files/tire_damage.pdf
 
I inherited a mismatched set of LT tires on my trailer and was going to replace them, then my trailer guy suggested letting nature run it's course and be prepared for the failure. Just ran 3 hours between 60-80 mph in 90 degree heat with no heat up, while having two brand new tires as spares. Checked tires and hubs twice in route by IR.

I have used Marathons for years on multiple trailers with nary an issue. I think some failures are the tires and some external factors not easily pinpointed. The variables are considerable. I do know that tires often fail when you are least prepared for it, kind of a "karma" thing. Did I just say that? Ooops! MM
 
MM, where did you find 90 degree heat this time of year?

I have been towing boats and horse trailers for a few decades. I have found a number of rules. One of which is bias ply tires do better on trailers than belted radials.

I now run LT bias plies and have for years without any blowouts (without an obvious puncture). And, when they have blown, they come a part in small chunks not that great big belt coming free and destroying everything in its path like the radials.
 
MonacoMike said:
I inherited a mismatched set of LT tires on my trailer and was going to replace them, then my trailer guy suggested letting nature run it's course and be prepared for the failure. Just ran 3 hours between 60-80 mph in 90 degree heat with no heat up, while having two brand new tires as spares. Checked tires and hubs twice in route by IR.

I have used Marathons for years on multiple trailers with nary an issue. I think some failures are the tires and some external factors not easily pinpointed. The variables are considerable. I do know that tires often fail when you are least prepared for it, kind of a "karma" thing. Did I just say that? Ooops! MM
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My local tire owner told me at 5 yrs. (from date of manufacture) your riding on borrowed time for a blow out. I too have used goodyear marathons w/o a problem. Alot of tires are already a yr. or two old before they are even mounted.
 
Maybe most people don't have a problem with the marathon tires but I will never purchase another Goodyear product. Not just trailer tires either. A couple years ago I had a massive catastrophic tread seperation. Mounted the spare and 50 miles later happened again. While rolling on 1 slick at low speed I lost another tread but not as violently. Granted it was hot and I was going 65 but still. The tires were not that old and were properly inflated. No dryrot no bulges no obvious signs of defect. I have utility trailers, boat trailers, travel trailer, and none of them will EVER roll on Goodyear's again.
 
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