Radial vs Bias Ply Tires

Discussion in 'Tires / Brakes / Bearings / Axles' started by ravis78, Aug 6, 2018.

  1. ravis78

    ravis78 2002 Rockwood Freedom 2280

    Apr 22, 2015
    I have never had any experience with bias ply tires. Until doing some research I did not even realize it was something that was used on pups.

    We had a flat(tread separation) while towing this past weekend on a set of Carlisle Trial Radial 145R12 Load Range E that were from 2012. We have a 2002 Rockwood Freedom 2280, dry weight 1847 and GVWR is around 2500.

    I will be replacing all 3 tires. I have always been very happy with the radials but wonder if the bias ply will do any better. Pup is stored inside on jack stands when not in use. I have way more than enough truck to tow and would like to have a higher speed rating tire.
  2. Sjm9911

    Sjm9911 Well-Known Member

    May 31, 2018
    From what I've been reading, is that the radials are better for road travel, heat, and tracking. The bias is older technology. They say tires dry rot after 5 years, so depending on that, your speed and lubrication that could have contributed to that.
  3. Pnut

    Pnut Member

    Jul 8, 2018
    NE Georgia
    Stick with the radials. Bias ply are old tech and are used by manufacturers because they are cheaper, not because they are better.
  4. xxxapache

    xxxapache Well-Known Member

    Jul 30, 2008
    FWIW, a bias ply usually causes less damage than a radial in the event of a failure.
  5. megcabra

    megcabra Well-Known Member

  6. myride

    myride Well-Known Member

    May 14, 2015
    Edmonton, AB
    Radials over bias especially if your more highway miles. Bias are old tech....there's a reason most manufacturers now put radials on over bias.
  7. joet

    joet Well-Known Member

    Mar 16, 2011
    Elkins WV area
    Since you store inside, the tires should last longer, UV light causes Dry rot
    How does one lubricate a tire.
    Radials will run cooler than bias, and heat is a tire killer.
  8. Sjm9911

    Sjm9911 Well-Known Member

    May 31, 2018
    Lubrication on the hub. Not the tire.
  9. Lanternman

    Lanternman Active Member

    Aug 17, 2017
    Mooresville NC
    Swapped out the bias plys on my little Starcraft for radials and will never go back. Per the 'hand test' they definitely run cooler, and although the majority of us dont tow over 65mph or so anyhow, its nice peace of mind to know you're running 65 with a tire rated for higher speeds, than right on the limit of 65 that most ST bias plys are rated for.
    Just my 2 cents.
    myride, megcabra and Sjm9911 like this.
  10. silvermickey2002

    silvermickey2002 Morris County, NJ

    Sep 11, 2008
    Morris County, NJ
    I replaced the bias-ply with radials and will never go back. The pup sees all highway. The radials run cooler and seems to ride better. That is to say does not seem as bouncy as the bias ply at least from the rear view mirror perspective! Yes, they cost a little more but last longer. The radials I have are rated for 80 mph.

    These are what I have and I know yours are 12":
    Last edited: Aug 7, 2018
    myride and Lanternman like this.
  11. Lanternman

    Lanternman Active Member

    Aug 17, 2017
    Mooresville NC
    Yep. Mine are Kenda Radial trail RH, size ST145-12 which should be the equivalent to the standard issue 5.30/12 bias plies.

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