Passenger tires on trailer?

marcoalza

Chief Petty Officer
Joined
Aug 22, 2010
Messages
643
Re: Passenger tires on trailer?

I would use good quality trailer tyres my friend.

Trailer tyres are for trailers. If you use car tyres and they blow and something happens to your baby, who can you turn to?
At least with quality trailer tyres, if something goes wrong your insurance company won't have a reason not to pay.
 

veritas honus

Lieutenant Commander
Joined
Jun 13, 2010
Messages
1,876
Re: Passenger tires on trailer?

I would use good quality trailer tyres my friend.

Trailer tyres are for trailers. If you use car tyres and they blow and something happens to your baby, who can you turn to?
At least with quality trailer tyres, if something goes wrong your insurance company won't have a reason not to pay.

Thank you, my friend!!! Please allow me to refer you to post #17 which was was posted almost three months ago...;):p:D

Now where are mr and mrs sasto when you need'em???:confused::D
 

marcoalza

Chief Petty Officer
Joined
Aug 22, 2010
Messages
643

Fishing Dude too

Lieutenant Junior Grade
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May 13, 2011
Messages
1,035
Re: Passenger tires on trailer?

As someone who worked for a major manufacturer of tires for over twelve years, before I tired of them closing plants, I can tell you that for basic tires there is hardly a difference at all. For instance Widetrack radials, Dayton tires, Firestone, and some Bridgestone only differ by slight compound changes and a different design in the curing press. If you ever saw how your tires were actually made you would wonder how they stay together and understand why they sometimes don't. I will never put a doughnut spare on a vehicle and drive more than an inch. Load rating is determined by the number of polyester plies (body ply) contained in the tire, contain heavier stabilizer ply insert, goes under the edge of the steel ply during construction, and bead construction. Many other differences in components but these are the main ones. Basically, most tires in a specific range of use are very similar but there is a major difference between truck tires, passenger car tires and trailer tires. Again construction is very similar but the compounds used and specific number of plies change. Especially when you get into the D and E load ratings. Just my .02 from a former tire builder and supervisor. Take it for what it's worth.

Seen Cooper build tires, and you are right, love how they put the tread on the bladder. I had an old ford van that had true steer tires on them loved them, have bought retreads but now can not find them because there no different than New tires. except for the bladder.
 

kcfromohio

Seaman
Joined
Jun 4, 2011
Messages
56
Re: Passenger tires on trailer?

I learned a lesson the hard way!

I went to Wal-Mart and bought two of the cheapest 14 inch tires I could find. I figured they would be fine for a boat trailer. (I have a 19 foot cuddy cabin Citation) I mounted the tires on the rims and added the recommended psi on the tire. when I put them on the trailer, they were half flat. I added more air until they looked full then checked the psi. it was at 60. I let a little air out just to be safe. I hooked up the trailer to my truck to drive it around the block a few times to set the lug nuts. When I went around the second corner both tires came off the bead. Luckily, I was in front of a friends house. I backed it in his driveway, took off both rims, went to a real tire center and got the proper tires for my trailer size and weight.
 

JimS123

Fleet Admiral
Joined
Jul 27, 2007
Messages
8,234
Re: Passenger tires on trailer?

I learned a lesson the hard way!

I went to Wal-Mart and bought two of the cheapest 14 inch tires I could find. I figured they would be fine for a boat trailer. (I have a 19 foot cuddy cabin Citation) I mounted the tires on the rims and added the recommended psi on the tire. when I put them on the trailer, they were half flat. I added more air until they looked full then checked the psi. it was at 60. I let a little air out just to be safe. I hooked up the trailer to my truck to drive it around the block a few times to set the lug nuts. When I went around the second corner both tires came off the bead. Luckily, I was in front of a friends house. I backed it in his driveway, took off both rims, went to a real tire center and got the proper tires for my trailer size and weight.

Not the tire's fault. You blew them up!
 

guy74

Senior Chief Petty Officer
Joined
Jul 12, 2007
Messages
794
Re: Passenger tires on trailer?

Well, here is my thoughts on the subject: The tires have to have enough capacity to carry the load. Each different type of tire has different attributes to their design, but the main thing is you cannot overload tires of any type and expect good results. Many of your boat trailers have smaller tires on them, and have to run heavy ply trailer tires in order to have enough capacity, no aurguement there. For a different example: My boat rides on car tires, P235/75r-15's to be exact. My boat-trailer combo weighs in at 1940lbs, full of fuel and all the stuff on board, subtract the 150lbs of tounge weight, that is 1790 on the two tires. Each tire on the trailer is rated at 2090lbs, and if you derate them by 10% (which I am not sure why that is done, but it is in what I have read) then I have 3762lbs of tire capacity under my 1790lb load. I don't think I'm gonna have any issues with that, so the blanket statment that car tires are a bad thing to have on a boat trailer doesn't always stand up. Mine had bias trailer tires on it when I got it, I didn't like the way they pulled at all, it pulls and rolls so much better now.
Just my $.02!
 

TireSkeptic

Recruit
Joined
Jul 24, 2011
Messages
3
Re: Passenger tires on trailer?

Well, my friend. I wasn't born yesterday. I've been working with tires, selling, mounting, fixing, and using them for some nearly 40 years. There is a reason trailer only tires say that on the sidewall in bold letters "TRAILER USE ONLY." That is because the manufacturer knows they are prone to blowouts (much like a child's balloon). They are UNSAFE for use on a passenger vehicle. There is a reason passenger vehicle tires are stamped with a DATE CODE. That is because any tire over 5 years is unsuitable for use even if "new." I've seen trailer only tires develop cracks in the sidewall after only two years. They are all made anymore in Chinese sweat shops with less than satisfactory standards.

At risk of being redundant I will repeat, the two main enemies of tires are under-inflation and overloading, aside from punctures. I could add age as a third enemy. If any have had trouble with passenger tires on a trailer it is simply because, as one fellow reiterated from his experience, they are overloaded. You get what you paid for. Buy quality LT tires with a high enough load rating and you will have no trouble whatsoever.

That said, there is an old saying "Him convinced against his will is of the same opinions still." It's your dime and it's your f'd up trailer when those cheaply made offshore "trailer use only" tires blow!
 

TireSkeptic

Recruit
Joined
Jul 24, 2011
Messages
3
Re: Passenger tires on trailer?

Well, here is my thoughts on the subject: The tires have to have enough capacity to carry the load. Each different type of tire has different attributes to their design, but the main thing is you cannot overload tires of any type and expect good results. Many of your boat trailers have smaller tires on them, and have to run heavy ply trailer tires in order to have enough capacity, no aurguement there. For a different example: My boat rides on car tires, P235/75r-15's to be exact. My boat-trailer combo weighs in at 1940lbs, full of fuel and all the stuff on board, subtract the 150lbs of tounge weight, that is 1790 on the two tires. Each tire on the trailer is rated at 2090lbs, and if you derate them by 10% (which I am not sure why that is done, but it is in what I have read) then I have 3762lbs of tire capacity under my 1790lb load. I don't think I'm gonna have any issues with that, so the blanket statment that car tires are a bad thing to have on a boat trailer doesn't always stand up. Mine had bias trailer tires on it when I got it, I didn't like the way they pulled at all, it pulls and rolls so much better now.
Just my $.02!

You're right on with the load rating! I've read a good many horror stories (too many) about "trailer only" radials going boom, even so-called brand names like Goodyear. They're all made off shore from who knows what (used Chinese condoms?). I think the reference to "derating" the tires may seem like an error, but it could be someone's way of ensuring the tire suits the load (too many try to get away on the cheap and buy tires too small for the load). Always EXCEED the GVW of the trailer with the tire, in other words make sure the tire is rated to carry more than it will be actually carrying with the trailer loaded up. The forces acting on a trailer, whether axial or radial are exactly the same between trailers and passenger vehicles or trucks under load.
 

guy74

Senior Chief Petty Officer
Joined
Jul 12, 2007
Messages
794
Re: Passenger tires on trailer?

You get what you paid for. Buy quality LT tires with a high enough load rating and you will have no trouble whatsoever.

I would agree that LT tires are your best bet on a trailer(I run 14ply LT tires on my stock trailers), if you need the capacity, but you can't get them in alot of the sizes needed on trailers
 

bruceb58

Supreme Mariner
Joined
Mar 5, 2006
Messages
30,581
Re: Passenger tires on trailer?

I would agree that LT tires are your best bet on a trailer(I run 14ply LT tires on my stock trailers), if you need the capacity, but you can't get them in alot of the sizes needed on trailers
Agreed....please let me know where you can find a 14" LT tire.
 

sasto

Captain
Joined
Jun 1, 2010
Messages
3,918
Re: Passenger tires on trailer?

Where's Papa Smurf when I need her?

I thought I'd learnt to read through and check dates of posts yesterday.
In the morning I replied to a post that was 10 and half years old!!:redface:
Stupidest thing I've ever done


That's the stupidest thing...marcoalza?

You are one lucky man!

If this world had more people like you...............nevermind. :cool:
 

Thalasso

Commander
Joined
Jan 18, 2011
Messages
2,879
Re: Passenger tires on trailer?

There is nothing wrong with useing pass. tire for the trailer as long as the tire has the weight rating. Some auto manufactures use auto tires on there light duty pickups. I asked the district rep why do they do this and his response was, it improves the ride. He told me to look at the load rating of the vehicle and then look at the tire spec and the tire exceeded the weight limit of the vehicle.
 

oldjeep

Admiral
Joined
May 17, 2010
Messages
6,455
Re: Passenger tires on trailer?

FWIW, all of the light duty (6K) car trailers I've ever seen and owned c or D rated radial passenger car tires on them - not trailer tires.
 
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