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Sh%&tty Tires!

Discussion in 'Tow Rigs, Trailers and other things with Wheels' started by Eric Ballard, Aug 15, 2017.

  1. Eric Ballard

    Eric Ballard Jet Boat Junkie

    Messages:
    588
    Location:
    Clayton, NC
    Ratings:
    +662 / 21
    Boat Make:
    Yamaha
    Year:
    2016
    Boat Model:
    SX
    Boat Length:
    19
    The trailer has new shoes!
     

    Attached Files:

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  2. claiton26

    claiton26 New Member

    Messages:
    12
    Ratings:
    +3 / 0
    Boat Make:
    Yamaha
    Year:
    2016
    Boat Model:
    FSH Sport
    Boat Length:
    19
    Nice shoes! I had the same problem with Carlisle tires. Won't buy them again.
     
  3. gmtech16450yz

    gmtech16450yz Active Member

    Messages:
    83
    Location:
    SF Bay Area
    Ratings:
    +148 / 0
    Boat Make:
    Yamaha
    Year:
    2017
    Boat Model:
    Limited S
    Boat Length:
    21
    I just ordered new wheels and tires for my brand new trailer. I'm not risking my $60k boat with $29 Chinese tires. F that!!! My trailer was spec'd for 215/75/14 radials like many others is, but they put the crappy Carlisle belted tires on it. They don't make decent load range tires in 14" wheel size so I actually went to 15" wheels and tires. I ordered 225/75/15 Maxxis M8008 tires and aluminum wheels. They're going to be tight, but I'll make them work.

    Here's why I went to 15 inch wheels... The Carlisle 14" tires are rated at 1,870lbs each. That's 7,480lbs total in PERFECT situations. Tandem axle trailers can't go by the simple 1,870 x 4 calculation though because all four wheels aren't always loaded perfectly evenly. If your tongue height isn't perfect, you're putting more weight on one axle or the other. So here's what happens... Your 212 or 242 that weighs around 5000 or 5200 DRY probably weighs more like 6k+ when you're ready to take it to the lake. You're never going to have perfect axle loading so what happens is you have a couple of those tires running under the max load capacity and a couple running OVER the max load rating. On Chinese tires. Yikes!

    The Maxxis tires I ordered are load range D tires. You can only get load range C tires in 14" sizes. You can actually get load range E tires in the exact same 15" size, but I didn't need to go that far on this application. The 225/75/15 is rated at 2,540lbs each. That's a total of 10,160 with perfect axle loading. THAT'S the kind of safety margin I want for my $60k investment! haha. If you think about it, it's not that far overkill actually. One axle would be safe for roughly 5,000lbs. Are there times when the entire boat weight is on one axle? Yeah, of course, or at least a large percentage of the total weight.

    I'll let you guys know how they work out, I should have them early next week. I know if I can make them fit that they will run at a lower speed (taller), run cooler and have a hugely lower chance of blowouts from overloading. You have to remember, the dealers put the wheels and tires on these trailers. They're going to buy the absolute cheapest stuff they can get their hands on. The wheels AND tires on these Yamaha/Shoreland'r trailers can be bought for around $60 each, mounted and balanced! Really? I spend more than that on bicycle tires.
     
    Last edited: Oct 20, 2017
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  4. swatski

    swatski Jetboaters Admiral

    Messages:
    5,051
    Location:
    Saint Louis, MO
    Ratings:
    +5,102 / 90
    Boat Make:
    Yamaha
    Year:
    2016
    Boat Model:
    AR
    Boat Length:
    24
    Keep us posted! Did you get the new fenders with your trailer, already? The new "strait" brackets are massive compared to the older once, make a huge difference. The new fenders may also be sitting a bit higher, maybe, which could be a plus with larger wheels!
    upload_2017-10-20_13-48-26.png

    --
     
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  5. Overtime81

    Overtime81 New Member

    Messages:
    28
    Location:
    Indiana
    Ratings:
    +17 / 0
    Boat Make:
    Yamaha
    Year:
    2017
    Boat Model:
    AR
    Boat Length:
    24
    Quick tire question. How can you tell if you have bias ply or radial tires? My 17 AR240 came with a Shorelandr trailer and Carlisle tires.
     
  6. Seadeals

    Seadeals Jet Boat Junkie

    Messages:
    565
    Location:
    Greenville, South Carolina
    Ratings:
    +529 / 6
    Boat Make:
    Yamaha
    Year:
    2006
    Boat Model:
    SX
    Boat Length:
    21
    Look at the letter before the rim size. R=radial, D=bias, B=belted
    Example: ST205/75R14 is a special trailer radial tire for 14" diameter rim.
     
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  7. Overtime81

    Overtime81 New Member

    Messages:
    28
    Location:
    Indiana
    Ratings:
    +17 / 0
    Boat Make:
    Yamaha
    Year:
    2017
    Boat Model:
    AR
    Boat Length:
    24
    Thanks
     
  8. Overtime81

    Overtime81 New Member

    Messages:
    28
    Location:
    Indiana
    Ratings:
    +17 / 0
    Boat Make:
    Yamaha
    Year:
    2017
    Boat Model:
    AR
    Boat Length:
    24
    I called and talked to Robyn today and she was familiar with our issue. All I had to do was send her a pic of the trailer tag and she handled the rest. Guess I'll find out in a few days if they will replace my bias tires with radials
     
    • Agree Agree x 1
  9. Overtime81

    Overtime81 New Member

    Messages:
    28
    Location:
    Indiana
    Ratings:
    +17 / 0
    Boat Make:
    Yamaha
    Year:
    2017
    Boat Model:
    AR
    Boat Length:
    24
    New radials enrute from Carlisle today. Robyn was a huge help and has set the standard for customer service
     
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