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Trailer vs. Passenger Tires?

Discussion in 'Trucks and Trailers' started by ajordan193, Mar 17, 2009.

  1. ajordan193

    ajordan193 LawnSite Senior Member
    from WNY
    Messages: 460

    What is the difference between trailer tires and passenger tires. My Enclosed Haulmark came with ST205/75D15 C rated and my open 16 ft trailer has P225/70R15. Both trailers have 3,500lb axles under them. My open trailer the tires are in great shape and going on their 3rd season. The enclosed only has a few hundred miles on it and the tires are wearing like crap. Can anyone explain why they put passenger tires on an open trailer?
  2. corey4671

    corey4671 LawnSite Silver Member
    Messages: 2,931

    it's my understanding that trailer tires have stronger sidewalls. If you think about it, when you turn a trailer, you are sliding the tires so there's more stress on the sidewalls.
  3. Gravel Rat

    Gravel Rat LawnSite Fanatic
    Messages: 9,544

    Trailer tires are only designed for trailers. When your dealing with the 15 inch tires you can't get a regular automotive tire with a heavy enough sidewall. If you had 235/75R15 you can get 8 ply tires in automotive.
  4. ajordan193

    ajordan193 LawnSite Senior Member
    from WNY
    Messages: 460

    So technically i should have trailer tires on my open trailer? I bought the trailer new 3 years ago with these tires.
  5. Travis E

    Travis E LawnSite Bronze Member
    Messages: 1,761

    Around here, most new open trailers have regular pasenger tires, probably because they can build the trailer cheaper then. I have passenger tires on my open trailer, and when your turn sharp, ie: turning out of driveways, you can just see the sidewalls really flex.
  6. Magnum Services

    Magnum Services LawnSite Member
    Messages: 63

    I buy used passenger tires for my enclosed trailer because the OEM tire, Goodyear Hi Miler trailer tires last one season or ten thousand miles and they are worn out! This is Outrageous for tires costing almost two hundred dollars each after mounting and balancing. I can't afford to do this EVERY year. Can you? I rotate the tires once a month when doing the truck tires and I get forty thousand miles from the truck. I buy used car tires mounted,balanced with NEW valve stems for twenty bucks each!
  7. Gravel Rat

    Gravel Rat LawnSite Fanatic
    Messages: 9,544

    If you are going to use automotive tires buy the best brand you can get and a tire that is a "rib tread". A good tire would be the LTX Michelin M/S .

    You get a tire that has a aggressive tread it will have too much scrub and you will see the sidewalls flex.
  8. grass_cuttin_fool

    grass_cuttin_fool LawnSite Gold Member
    Messages: 3,526

    enclosed trailer has bias ply tires and the other has radials.......radials will outlast bias 3-4 times longer.......car tires are ok if you are not grossing the weight out on the trailer.......if you are close to the 7000 pound total then you more than likely have overloaded and will blow out the tires
  9. ajordan193

    ajordan193 LawnSite Senior Member
    from WNY
    Messages: 460

    Thanks guys, guess now i have to figure out why the tires on my enclosed are wearing so bad. The trailer was used a year before i purchased it, original owner used it for storage and claimed he has less than 100 miles on it. I figure I have put about 100 miles on it this year and the trailer is not even loaded. How can the tires be torn up so bad in 200 miles?
  10. Gravel Rat

    Gravel Rat LawnSite Fanatic
    Messages: 9,544

    How is your hitch height if the trailer has a rake to it where the back axle is seeing more weight than the other they will wear funny.

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