On a recent trip to Anza Borrego I blew 2 trailer tires while towing my rig with my R.V.
It was probably a 1200 mile round trip and I know the tires were getting pretty hot.

I have these cheap tires that came with the trailer F78-15 (I think). I want to upgrade to some H78-15 but where can I get best deal.

Thanks,

You need a heavier-duty tire. I had "car" tires on my trailer for a long time & got tired of all the flats. Wanted to go to "trailer specific" tires, but the dealer didn't have any in stock in the size I wanted. So, I went to load range "C" (aka "6-ply") truck tires. No flats since & it's been a few years.

TEX

tex is shooting you straight info. i had 15" load range D's on my 24 ft. wells cargo trailer. before we took off to moab this year i went to 16 in load range E. we had over 10k in the trailer and never had a problem. if you buy some used tires just make sure they are not dry rotted. my motor home had some load range D's on it and i blew 5 of them before i made it to colorado. they looked brand new but just kept chucking tread. i have since switched to load range E's on it also. you would do fine with a load range c or d unless you really stack the weight on. and make sure you run the tires at max pressure that will keep the heat build up lower. mike

Trailer Tire requirements differ greatly from automotive tires. Automotive tires must maintain traction during all driving conditions: pulling, stopping, turning, or swerving. Because of this they must have more flexible sidewalls to maintain tread to road contact. Since trailers have no driving torque applied to their axles, the only time trailer tires must have traction is during the application of trailer brakes.
Trailers with heavy loads, high vertical sideloads (like camper trailers), or trailers with inadequate tongue weight can be affected by trailer sway problems. Automotive bias or radial tires with their more flexible sidewalls can accentuate trailer sway problems, whereas the stiffer sidewalls of the ST (special trailer) bias ply tires help to control and reduce sway problems. For this reason it is not recommended that (P) Passenger or (LT) Light Truck tires be used on trailers. Best trailer control will be achieved with (ST) Special Trailer tires.

BTW - I didn't write what is above. Just copied it from the net...

:flipoff2:

i feel your pain....last sept. I blew 3 on the moab trip (first trip with new trailer). BTW the trailer manu. replaced the three with new ones, didn't help me find trailer tires in the middle on nowhere AZ though:mad:

Goodyear makes a "ST" tire for trailers. In sizes: 205-225- or 235/70/st15 that I know of for sure. Haumark trailers, and most high end horse trailers, come from the factory with them. They should be an easy pick at most Goodyear tire stores. If not, they should be able to order them pretty easy for you.

My local Big-O tires has offers goodyears at about $100 each and TowMasters at $60 each.

Anybody run the TowMasters????

Thanks,

Originally posted by woody99
BTW - I didn't write what is above. Just copied it from the net...

:flipoff2:

Well it actually sounded like you knew what you were talking about for a second. :flipoff2:

If they were both right side tires look for bent spindles. I had a boat trailer that was giving me fits. The previous owner must have wacked a curb once to often. ( I never hit curbs :flipoff2: )

I ran shit tires on my trailer for a couple years, and still keep 2 LT radials on there as spares...however, the 4 on the pavement are Goodyear Marathon Radial Trailer Tires. 4 years running, not one problem or complaint. ~$80 each, but worth the piece of mind.

Was on a trip 2 years back and one of the guys in our group junked 3 trailer tires in 200 miles. Used his spare, then had to remount tires from our trailers onto his rim for the other two blowouts. (No spares to be found at 2am) PITA...and he's since upgraded to the Marathons as well.

I haven't been able to find a trailer tire to fit mine yet, it runs a 9.50-16.5 and needs a 3500 Lb load capacity per tire, or my other set of rims is 16x8, and I can't find a suitably rated trailer tire there either...

Thank you, woody. For the life of me I couldn't remember the name of the tire till you said it. Marathons are the Goodyear "st" tire.

Get some bias ply load range E tires and inflate the tires to near max pressure and you should be okay. I carry 2 spares just in case. I see so many trailers on the road with blown tires.. I've had my share of them too before going with load range E tires.

Charles

Just out of curriosity, witch two did you blow
ericfilar@fatcity

Originally posted by CrazyHorse
I haven't been able to find a trailer tire to fit mine yet, it runs a 9.50-16.5 and needs a 3500 Lb load capacity per tire, or my other set of rims is 16x8, and I can't find a suitably rated trailer tire there either...

I looked for 16" trailer tires for a while also, couldn't find anything. I ended up putting on Goodyear G159's, they looked to be about the heaviest light truck tires goodyear makes, & they even list them as a commercial tire. http://www.goodyeartrucktires.com/tirecatalog/G159LT.html for more info

If it's a tandem axle tire, check something. Incredibly, a lot of axles on boat trailers and such are located with nothing more than Ubolts on the frame. If they're mounted a bit off due to an assembly rush, your tires will constantly be out of line with the other axle and they'll all heat up and wear fast and/or pop. So get out a measuring tape and be sure the rim lips are the same distance apart on each side. On the positive side, it takes about 10 minutes to correct this by loosening the ubolts a bit and sliding them with a hammer while still slightly tight. Been there and done that, now I've carried a spare since and it's never been needed.

Thanks for your help guys... Ended up upgrading to some Carlyle(sp?) brand radial trailer tires from Americas Tire company. Load range D and $55 each.

Went from 1800# rating to 2500# per tire. Tested them a bit on Sat. and they stayed cool for a 100 mile round-trip up to the snow...

Nope, I can't remember how to spell Carlyle either. I know there is an "S" in there somewhere!:D

They are good tires. Morgan Built trailers out of Oregon run those on their flatbeds and they last for quite awhile. They seem to be a "sturdier" contructed tire also. The sidewalls of a dismounted Carlyle feel thicker and stiffer than the others.