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Tire question

Discussion in 'Suspension' started by Spanky, Jun 30, 2022.

  1. Spanky

    Spanky
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    New member Shari Rogers asks:

    I recently discovered that I need a new set of back tires. The only ones that I have been able to find in the right size are bias. Has anyone had experience with running large (33x21.5) bias tires on the rear?
    Wondering about the rough ride & handling.
    TIA
     
    #1 Spanky, Jun 30, 2022
  2. 409T

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    Aren't Mickey Thompson Sportsman tires biased ply?
     
    #2 409T, Jun 30, 2022
  3. PotvinGuy

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    Bias ply are scary on the rear, you'll be all over the road. I know, I used MTs for a while. What size radials do you need?
     
    #3 PotvinGuy, Jun 30, 2022
    Shari Rodgers likes this.
  4. Dezolde

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    #4 Dezolde, Jun 30, 2022
  5. Dezolde

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    Hoosier Pro-Street 33x21.5R is a radial.
     
    #5 Dezolde, Jun 30, 2022
  6. Indycars

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    MT makes two Sportsman tires the S/T and S/R (Flame Tread), both are radial tires.

    Mickey Thompson Sportsman S/T
    upload_2022-6-30_20-58-41.png

    Mickey Thompson S/R
    upload_2022-6-30_20-52-40.png
     
    #6 Indycars, Jun 30, 2022
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  7. 409T

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    To answer the lady's question, I have 3 cars using 33 x 21.5 bias tires on the rear, with a cumulative total of about 30 years on the road. They ride fine at 12 lbs. pressure on the T-buckets, slightly more on the Model A, and work well on dry pavement. For wet roads I think the flame tread radial would be much better. It rarely rains here so that is never a concern for me.
     
    #7 409T, Jul 1, 2022
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  8. Neshkoro

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    The interesting thing about that question/ statement is it starts you thinking. Is my problem (whatever the problem is) related to my bias belted tires? Would radials fix that problem? Should I dump my old tires and spend $1,000+ on a new set of tires. What happens if the problem doesn't go away? I just spent a boat load of money with no improvement! At least you got a new set of tires out of it. The old ones were probably getting out of date anyway. That's always the question.
    Just thinking or over thinking things!
     
    #8 Neshkoro, Jul 2, 2022
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  9. Spanky

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    Given the overall performance advantage of radial tires on the street, I'd go that way rather than the bias ply route. Just sayin' . . .
     
    #9 Spanky, Jul 2, 2022
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  10. Neshkoro

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    I suppose if you need tires, I would go with the radials just because they are the newer technology. If you're restoring a classic and want to keep it original, then bias belted tires are may be what you want. Buckets aren't quite like driving a Vette around a road course!!
     
    #10 Neshkoro, Jul 2, 2022
  11. Indycars

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    But that's exactly what we will be doing at the Nationals in Bowling Green KY. A 3.15 mile test track near the Corvette Museum!

    Yippee !!!
     
    #11 Indycars, Jul 2, 2022
  12. rbsWELDER

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    I need two Mickey Thompson Sportsman S/R 29-18r15. Could not find them anywhere and I called Mickey Thompson Corporate. They told me that they were taking a "Pause", from making the S/R, for 2022. She told me to call her back in January 2023!
     
    #12 rbsWELDER, Jul 2, 2022
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  13. PotvinGuy

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    I have a similar experience with Hoosier. My 17" weenies come and go on their list. A while back I got worried what if I needed a pair. I put a search on eBay and got a slightly used pair for a pittance.
     
    #13 PotvinGuy, Jul 2, 2022
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  14. Shari Rodgers

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    Unfortunately MT quit making the 33x21.5 R15s. That is what I'm running now, however, I have found an issue with one of them and they need replaced asap. I have even tried going to 31x22R15, 31x15R15, and 31x18.5R15. both MT and Hoosier makes. None available :/
    Nothing on e-bay either.
     
    #14 Shari Rodgers, Jul 5, 2022
  15. Shari Rodgers

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    Unfortunately they are on hiatus in production at the moment. That is what I'm running now.
     
    #15 Shari Rodgers, Jul 5, 2022
  16. Shari Rodgers

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    Thanks Spanky. Unfortunately the only thing available in the size I need are bias.
     
    #16 Shari Rodgers, Jul 5, 2022
  17. Shari Rodgers

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    33x21.5 R15
     
    #17 Shari Rodgers, Jul 5, 2022
  18. fletcherson

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    Varying tire pressure should at least clue you in on if you are in the right neighborhood. Tires sure are expensive, like most everything else.
     
    #18 fletcherson, Jul 7, 2022
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