Trailer Tire Confusion

SteveRay

Petty Officer 1st Class
Joined
Oct 20, 2004
Messages
338
HELP! <br />I am trying to shop around for a good price on tires for my boat trailer and I can't seem to find the tires.<br />The current tires are "Deestone G78-14ST"<br />Can anyone tell me where to find these or eqivalent and is there a cross reference?<br />Thanks in advance
 

JB

Honorary Moderator Emeritus
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Mar 25, 2001
Messages
45,907
Re: Trailer Tire Confusion

The letter system for stating tire size is obsolete, Steve.<br /><br />I think you want 205R/14ST or 205/14ST.<br /><br />Good luck. :)
 

rwidman

Lieutenant
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May 27, 2004
Messages
1,396
Re: Trailer Tire Confusion

A trailer or RV shop can fix you up. Also BoatUS/West Marine or Boaters World. "Carlisle" brand tires have a bad reputation, I would go with another brand. Loadstar bias belted tires have worked well for me, for radials, Goodyear Marathons are highly rated by many. Be sure to buy only ST (special trailer) tires, not car or truck tires.
 

SteveRay

Petty Officer 1st Class
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Oct 20, 2004
Messages
338
Re: Trailer Tire Confusion

I found them on Easter marine's website for 67.95 each....Doesn't sound bad. They are not Carlisle and I think they are actually Loadstar. <br />I figured teh conversion from their site to be <br />ST215/75D/14<br />The 205 is for a F78-14ST according to their site
 

rwidman

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Re: Trailer Tire Confusion

Originally posted by Sea Ray Steve:<br /> I found them on Easter marine's website for 67.95 each....Doesn't sound bad. They are not Carlisle and I think they are actually Loadstar. <br />I figured teh conversion from their site to be <br />ST215/75D/14<br />The 205 is for a F78-14ST according to their site
That's where I got my (Loadstar) spare.
 

rayjay

Petty Officer 1st Class
Joined
Jan 21, 2005
Messages
243
Re: Trailer Tire Confusion

Originally posted by NYMINUTE:<br /> Carlise = Blowout
I would have liked to have known this 3 months ago when I was putting new tires on the wife's horse trailer. :mad:
 

Realgun

Commander
Joined
Jul 31, 2003
Messages
2,484
Re: Trailer Tire Confusion

I would have liked to have known this 3 months ago when I was putting new tires on the wife's horse trailer.
Do you think the horses will forgive you?
 

LoneReefer

Recruit
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Nov 2, 2007
Messages
4
Re: Trailer Tire Confusion

Why cain't I use Car tires of the proper load capacity and size? Whats the difference???
 

guy74

Senior Chief Petty Officer
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Jul 12, 2007
Messages
794
Re: Trailer Tire Confusion

Why cain't I use Car tires of the proper load capacity and size? Whats the difference???

For the record, I use passenger rated tires on my boat trailer with good luck. ST rated tires have a stiffer sidewall and are able to take more abuse, like dropping off the edge of the road, or hitting curbs than a passenger car, or light truck tire. I don't feel, for the kind of towing I do, that I can justify the cost of ST tires for my trailer, when I can use the ones I take off my jeep cherokee for trailer tires. My trailer has large tires and a light boat on it, so it doesn't put the kind of stress on tires that most larger boats do. If I was towing long distance with a heavy boat, I would definately buy a good ST rated tire. My $.02
 
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Gary H NC

Fleet Admiral
Joined
Dec 1, 2005
Messages
8,972
Re: Trailer Tire Confusion

If you have Northern Tool stores in your area they sell the Load Star trailer tires.I think they are about 40 to 50 each for that size.Look on their website.
Car tires are a big NO for me on any trailer.They have way to much flex in the side walls and can cause trailer sway!
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: Trailer Tire Confusion

Trailer tires (ST) also have higher inflation pressures (50 pounds and up depending on the load rating). This results in a cooler running tire. Car tires these days are rated at 36 PSI max. They are ok on a very light load but are not recommended when the tires are loaded at or near their maximum load capacity as boat trailers and RV's typically are.
 

brokemerc

Petty Officer 1st Class
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Nov 13, 2007
Messages
233
Re: Trailer Tire Confusion

I just bought 2 from NorthernTools,, they were F78-14ST, the brand was Loadstar.. The price was $68 per tire (no rim).. Mounting was a huge pain because the rubber was squished flat due to the way they shipped them,, first I tried, then good year,, then merchants.. Finally I bought a can of starter fluid sprayed a bunch inside the tire put the air to it and lit a match,,, poof,, mounted tire.. Good Luck...
 

a70eliminator

Captain
Joined
Sep 9, 2007
Messages
3,762
Re: Trailer Tire Confusion

I use car tires on my trailer because back in the 80's I had a new set of trailer tires put on and they only lasted about 2 seasons, I then went and tried a good set of Goodyear steel belted radials which are still on there today although they are starting to dryrot but the tread is still good. they are a 12" tire spec. out to a hond civic at the time, they carry a fiberglass 16' MFG/60HP. I wont hesitate to put the same tire back on they worked great for many many miles.
 

brokemerc

Petty Officer 1st Class
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Nov 13, 2007
Messages
233
Re: Trailer Tire Confusion

Yes I've heard pros and cons, only pro for using car/truck tires is the price and it's not that big of a difference. I just prefer the piece of mind knowing I have the correct tire with superior sidewall strength,, just in case.. If I knew that I wouldn't be trailering far i'd consider auto tires definately, but my trailer will see many highway miles..
 

jeffnick

Senior Chief Petty Officer
Joined
May 24, 2004
Messages
695
Re: Trailer Tire Confusion

I use passenger radials on my boat trailer.
http://www.geocities.com/jeff_nicholas/Trailer_Tires/Trailer-Tires.html

And I mount them myself...
IMG_2445.jpg


http://cgi.ebay.com/ebaymotors/Port...009QQitemZ190198208591QQrdZ1QQsspagenameZWDVW
 

Wide Open

Seaman
Joined
May 29, 2007
Messages
57
Re: Trailer Tire Confusion

I just bought 2 from NorthernTools,, they were F78-14ST, the brand was Loadstar.. The price was $68 per tire (no rim).. Mounting was a huge pain because the rubber was squished flat due to the way they shipped them,, first I tried, then good year,, then merchants.. Finally I bought a can of starter fluid sprayed a bunch inside the tire put the air to it and lit a match,,, poof,, mounted tire.. Good Luck...

You are one resourceful if not slightly crazy hombre. Glad it worked out for you.
 

MrBigStuff

Chief Petty Officer
Joined
Aug 7, 2004
Messages
497
Re: Trailer Tire Confusion

Some of you guys are less risk averse than I am. My trailer tires are very hot after towing. Heat kills tires. That's why underinflation is so bad for them, they overheat and fail. The thought of them failing, causing an accident and the liability when the insurance company bails (or a jury finds me grossly negligent) because they find out I was running passenger tires, well, I'm not going to risk it for a hundred dollars every 5 years...
 

jeffnick

Senior Chief Petty Officer
Joined
May 24, 2004
Messages
695
Re: Trailer Tire Confusion

well, I'm not going to risk it for a hundred dollars every 5 years...

You're missing the point. My ST tires were scaring the daylights out of me, for good reason...failure after failure. I've found that properly loaded passenger radials on the trailer perform way better than ST tires. It's not about saving money, it's about having a quality tire on the trailer that you can count on. Of course, YMMV.
 

MrBigStuff

Chief Petty Officer
Joined
Aug 7, 2004
Messages
497
Re: Trailer Tire Confusion

I didn't miss your point at all. That's the reason I posted. I think it would be a dangerous practice for me and many other applications for the reasons I cited. Passenger tires are not designed to take the trailer sway and heat generated from it. The fact they appear to work better in your situation would only make me question what was wrong with the tires I was buying or my trailer set up if it happened to me. I trailer at least every single weekend during the summer, often multiple times per week. Knock on wood, I've never had a tire fail and I run the oft maligned here Carlisle tires. Applications vary quite a bit and in mine, the tires are very hot to the touch after a trip. No way I would subject a passenger tire to that kind of heat. Passenger tires seem to be working for you. I'd be very hesitant to extend that advice to others. That's all I'm saying.
 
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