I got new tires...question

Discussion in 'Tires / Brakes / Bearings / Axles' started by jmkay1, Aug 20, 2018.

  1. jmkay1

    jmkay1 2004 Fleetwood/Coleman Utah

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    I just got my tires replaced however I noticed there is a slight difference in the numbers from what I used to have. So not sure if it means anything. So here goes... Apparently my Goodyear marathon tires were well over 8 years and more than needed to be replaced. Those tires were st185/80R13 load range C radials. So the shop replaced them with...Cralisle 175/80r13 load range c radials. My question is regarding the 175 vrs 185 number? What is the difference? I did not feel any difference in the towing aspect, then again rush hour traffic is really not a good test. Also does anyone know how good Cralisle tires are? I never heard of them before, I would have preferred Goodyear but I was desperate for tires and it's what the shop had in stock. I was planning a last minute trip, as usual, and needed those tires replaced quick.
     
  2. Sjm9911

    Sjm9911 Well-Known Member

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    The first number is the with of the tire, I don't know how it will affect the towing. Probubly not much. There is not a great deal of stock when it comes to tires, I think I got the 185s in a d range and had very few to pick from on the net. All tires I saw have good and bad ratings, but I think I bought the same brand as you. So I hope there good!
     
  3. chambo

    chambo Active Member

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    The first number is the tire width measured from sidewall to sidewall. So your new tires are 10mm skinnier than your old tires. I'm not enough of a tire expert to know what the trade offs are. I would guess that a skinnier tire will have less resistance for towing, but also have less surface area touching the road when stopping. I doubt any of this will really matter in a trailer.
     
  4. MrsSquid

    MrsSquid Active Member

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    Hi jmkay1,

    Good to hear you got new tires.

    I asked MrSquid to answer your question so here it is:

    Hope that helps.
     
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  5. SteveP

    SteveP Well-Known Member

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    The 175s will probably have a slightly lower load rating than the 185s.
     
  6. Snow

    Snow Well-Known Member

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    Take them back and get the proper size.. each tire size has a different load range. Most st185/80R13 with LR "c" can support a weight of 1725lbs each. Those new ones you got can only do a weight of 1360lbs each. That's a 730lb difference for the pair..
     
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  7. Raycfe

    Raycfe Waterford Ct.

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    I would take them back also.
     
  8. Sjm9911

    Sjm9911 Well-Known Member

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    Nj
    The load range isn't universal? Really?
     
  9. Sjm9911

    Sjm9911 Well-Known Member

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    Nj
    Looked it up and the ranges are diffrent. I guess that's why it's a range. Befo re jumping the gun and taking them back I would check on the weight of the trailor.
     
  10. Snow

    Snow Well-Known Member

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    The GVWR is 3620lbs according to the 2004 brochure..
     
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  11. Sjm9911

    Sjm9911 Well-Known Member

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    Ouch , just saw that in his profile. I have d loads on mine. Simmiler pup, older.
     
  12. joet

    joet Well-Known Member

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    TAKE THEM BACK!
     
  13. jmkay1

    jmkay1 2004 Fleetwood/Coleman Utah

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    Oct 10, 2013
    Northern Virginia
    Thanks all for your help. I called the shop and he will replace them. However we mentioned that even my old tires were too small for the weight of my camper. He is going to try and see if another size will fit in my wheel well. If anyone has a fleetwood Utah do you know what size tires you have? I'm going to do some research as well as I'm very nervous about this now.
     
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  14. Halford

    Halford Well-Known Member

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    I have Marathon ST185/80R13 for mine.
     
  15. SteveP

    SteveP Well-Known Member

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    The only 185/80R13s I can find in load range C are by Maxxis, with a load range of 1480# at 50 psi. This should be enough for a 3700# pup as you should have at least 350# on the tongue. Load range D, which is more common in this size, would be even better but would require higher pressure.
     
  16. jmkay1

    jmkay1 2004 Fleetwood/Coleman Utah

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    Northern Virginia
    Is that a load range C? The load range C shows 1480 pound rating and my camper is 3600 pounds. Even the C's I had on didn't get me to that #. Or am I looking at it wrong?
     
  17. Halford

    Halford Well-Known Member

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    Santa Clarita, California
    Yes the Range C on my Marathon. I just found out that my Niagara GVRW is 3350 lbs, not the 3500 as I thought. The Load C is perfect for my Niagara.
     
  18. Snow

    Snow Well-Known Member

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    You may have to look at Kenda Loadstar bias tires with 1725lb for their load range "c". Tires.
     
  19. bols2Dawall

    bols2Dawall S.W. Ontario

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  20. myride

    myride Well-Known Member

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    I run ST185/80R13 "D" by Carlisle on mine...which is the same trailer as yourself.
     
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