Tires on a trailer

Discussion in 'Questions From New Drivers' started by Jay john, Mar 13, 2020.

  1. Jay john

    Jay john Bobtail Member

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    Mar 13, 2020
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    I pointed that a trailer I thought could use a few new tires needed tires .
    When I cam back to the shop the trailer
    Had 295 75 22.5 s on the left front set 11 r22.5s on the left rear . 295 75 22.5s on the right rear and 11 r 22.5 s on the front right. This is looks odd the shop told me they are the same. I know they are not you can see the size difference. Is this a violation.
     
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  3. Suspect Zero

    Suspect Zero Road Train Member

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    I seem to remember that 295/75/22.5 is the same size as 11R/22.5 but its been a while and the conversion always confused me a bit. Perhaps they appear to be different size due to different thread and sidewall patterns?

    But to answer your other question, you can have different size tires on a vehicle but they have to be all on the same axle. So if the tires do turn out to be different sizes then the shop would just need to swap tires axle to axle on one side of the trailer to get them where they need to be.
     
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  4. Rideandrepair

    Rideandrepair Road Train Member

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    I don’t know if it’s a violation, but definitely not the same size tires. 2” or more height difference. They could have at least kept them matched up per axle. If it’s a spring ride, maybe wear flat spots quickly on the lo pros. Air ride, probably be OK. I’ve done it in a pinch, but Shop should know better.
     
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  5. Ridgeline

    Ridgeline Road Train Member

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  6. Rideandrepair

    Rideandrepair Road Train Member

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    11r22.5s ( tall) are close to 285/75r24.5s (lo pro) in size.
     
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  7. kemosabi49

    kemosabi49 Trucker Forum STAFF Staff Member

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    No violation and on a trailer shouldn't cause any problems. You just don't want 2 different sizes running together next to each other. Bad wear will result.
     
  8. Moose1958

    Moose1958 Road Train Member

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    I am going to use this thread and the OPs question to express some frustration at how drivers today are being trained. I am not trying in any way to cause trouble with the OP and of course, I actually commend the OP for at least asking. Tires and wheels are a subject in my opinion where a properly trained driver should already know what is legal and what is not. A driver should also know the different tires and why some tires are used for drives and others used as steers. This harkens back to these chaining up threads. I am starting to really get upset at carriers of most all sizes that are putting drivers out on their own that don't understand these basic things. What is even more appalling is some drivers are working a "trainers" and are as dumb as bricks on tires, brakes, and chains. I do hope the OP got their question answered and I hope they come back if they have any more questions. I am just really getting tired of just how ignorant some of these green drivers are in regard to OOS criteria. BTW, ignorant does not mean dumb or stupid. It means you lack knowledge on a particular subject.
     
  9. truckdriver31

    truckdriver31 Road Train Member

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    this is the reason a good company is important. good companies do it right from the start.
     
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  10. D.Tibbitt

    D.Tibbitt Road Train Member

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    Yeah because im sure u was born with all the knowledge about tires . Why u giving him a hard time for asking a question ? That is the whole point of asking questions , to gain knowledge in an area u dont have . Not everybody was born a supertrucker that knows everything about everything
     
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  11. SmallPackage

    SmallPackage Road Train Member

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    That’s just dumb how they installed those tires. They should have matched them the same across the axle. Its details like that that can cause problems.
    Great job on catching that. Even if they say it won’t hurt anything and they are the same. The Shop is too lazy to have pride and do it right in my opinion.
     
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