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Issues with Tire blowing off the rim and sending me to the ER.

Discussion in 'California & Hawaii' started by NorCalHub, Oct 5, 2015.

  1. NorCalHub

    NorCalHub Chimp

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    Started running the Minion DHF 29 x 2.5 EXO TR tire on my Intense Carbine with the 2.4 Ardent in the rear and have been loving them. Problem is...my first Minion was defective-torn casing. I mounted it and it was very clearly defective. Went through the warranty process on the website and after three months they replaced it. I specifically chose to run such burly tires because the last two California Enduro Races were going to take place at Northstar and at Mammoth and both have very rocky and very aggressive terrain, terrain that I felt these tires were suited for perfectly, so even though I was carrying a little extra weight around for my local trails, I wanted to be familiar with these tires for my last two races of the season.

    I really focused on getting the tire pressures dialed in before the race by running them on my local DH trails in Auburn-very rocky and aggressive terrain as well. After about ten rides I had settled on the front at 25psi and the rear at 30-35psi. Tire pressure worked out great in Northstar and took me to the top step in my class and I never had a single issue with my tires, they kept me safe and fast. Next up was Mammoth and well, long story a little shorter, I got to Mammoth, had four or five runs of practice in the first day and was really looking forward to crushing it. I was feeling prepared, fit, focused and ready to race. The next day, my team showed up and I went out to run practice with them to show them the lines I had researched and tested and as I was taking them down Bullet and showing them the line through the trees at the first rock garden that has a 3 1/2 to 4 foot drop to the right and BOOM! my front tire exploded off the rim and i was ejected over the bars onto my should/neck/head.....brand new Carbon D3 broken, C1 and C2 stressed and a broken collarbone. My practice, my race and my season were over. Not to mention I crashed in front of my team and jacked with their confidence and focus on their first run of the weekend. It was a bummer.

    My issue now is...why did the tire blow? What could I possibly have done to prevent this issue from happening? Has anyone had this experience with Maxxis? or any other tires? It's in my head now and I'm pretty bummed. Maxxis said they will replace my tire because it "stretched". It stretched enough to be loose on the rim and come off under stress. How can that be a safe tire? Is there anything to do to prevent this from happening? I really liked this tire and I don't know what to do moving forward. Any ideas or thoughts would be greatly appreciated. Thanks for the time,
    H
     
    #1 -   Oct 5, 2015

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  2. kidwoo

    kidwoo Celebrating No-Pants Day

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    Stans rims by chance?
     
    #2 -   Oct 5, 2015
  3. Nick

    Nick My name is Nick

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    behind you, don't wait up.
    Did a lawyer help you write this?

    Things happen. Maybe 25psi was too low under your chosen race pace, and the line you decided to take, at your particular skill level.

    My experience with minions are limited to the 26" models but I've not had a tire blow off a rim ever. (using mavic 819 or 823)

    Heal up soon!
     
    #3 -   Oct 5, 2015
  4. canadmos

    canadmos Mater Slayer

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    At the very least, you didn't break your back/neck/head. Heal up and get back on the bike. :)

    Like Nick I've never had a tire come off the rim or blowout like that. Did you have tubes in them?
     
    #4 -   Oct 5, 2015
  5. kickstand

    kickstand Turbo Monkey

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    what rim?
    what rim tape?
    what width rim?
    Tubeless?
    Tubes?
    How many times had it been mounted unmounted?
    Had it done this before?
    How many miles were on it?

    details mang.

    Never had this happen, haven't seen it happen, only seen a few rears get blown off.
     
    #5 -   Oct 5, 2015
  6. Jm_

    Jm_ Turbo Monkey

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    I have the 29x2.5 minion and have had no problems with it rolling off my nextie rims. Thrashing it at the DH park too. 25psi would definitely be too low for me to ride DH on.
     
    #6 -   Oct 5, 2015
    Last edited: Oct 5, 2015
  7. yd35

    yd35 Monkey

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    What condition were your rims in? Tubeless? I've had tires set up tubeless blow off rims that were not in great shape (some dents and flat spots) under hard cornering.
     
    #7 -   Oct 5, 2015
  8. MmmBones

    MmmBones Monkey

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    did you add uncle bens minute rice to your stans?
    did you check to make sure stan was in your rim?
    what did you have for breakfast?
    were you wearing crocs?
     
    #8 -   Oct 6, 2015
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  9. kickstand

    kickstand Turbo Monkey

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    I really like crocs for loafing around the bong shed, they're so comfy on the feet.
     
    #9 -   Oct 6, 2015
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  10. JohnE

    JohnE filthy rascist

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    Front Range, dude...
    DH trails in Auburn?
     
  11. imp

    imp Chimp

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    Wire bead or no?

    NON wire bead (minion DHF 2.5, 28psi) blew off my (stans ztr flow) tubeless rim while creeping down a techy trail in Laguna, maybe ~65%+ grade, sending me into a bush 12 feet down the trail.

    I don't know much, but I know tubeless stans <30psi non wire bead minion is a losing setup.
     

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    #11 -   Oct 6, 2015
    Last edited: Oct 6, 2015
  12. boostindoubles

    boostindoubles Nacho Libre

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    I blew a front tire off a stans rim. Was a Crest with an Ardent. That rim was a mistake and I knew it but was trying for shits/giggles. Let's say them Crest are throw away race rims for weenies.

    Either way, under 30psi + Ardent (used on another wheel previously) + Stans Crest = KABOOM
     
  13. rockofullr

    rockofullr confused

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    There are a few fun trails in the Foresthill area
     
  14. NorCalHub

    NorCalHub Chimp

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    I was running the Minion EXO TR Tire, had about 200 miles on it, E13 TRS+ rims, E13 red tape, 3 oz. of Stans in the tire. I had been mounted once and tire pressure was checked every time previous to riding using the same pump every time. I'm really surprised that folks are using 30 plus psi in these tires but maybe that's my deal? Too low of pressure in a DH tire? Didn't know there was such a thing. ;)
     
  15. NorCalHub

    NorCalHub Chimp

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    Some really good ones actually.
     
  16. NorCalHub

    NorCalHub Chimp

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    Kevlar bead. DH TR tire though. E13 TRS+ rims 25psi
     
  17. kidwoo

    kidwoo Celebrating No-Pants Day

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    Do yourself a favor and just go buy a butcher at a specialized dealership.

    There's no way in hell I'd use that tire/rim combo again. Compared to your spine and your expensive taste in helmets, tires are cheap.
     
  18. JohnE

    JohnE filthy rascist

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    Front Range, dude...
    Must be talking about Culvert, right?
     
  19. JohnE

    JohnE filthy rascist

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    Front Range, dude...
    SRA is a great area...but I have never thought of it as a DH centric place. I guess that Downieville place has me expecting a bit too much...
     
  20. Jm_

    Jm_ Turbo Monkey

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    Not Rocky.
     
  21. imp

    imp Chimp

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    I honestly think that's your problem. I will never do tubeless with a folding bead again, after multiple incidents.
     
  22. kidwoo

    kidwoo Celebrating No-Pants Day

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    There's nothing inherently wrong with folding beads and tubeless.
    Been doing it for years with probably over 100 tires at this point.

    There are just some bad tire/rim combos. That's why I asked about stans rims. They ironically are some of the worst to run tubeless with some brands of tire.
     
  23. blindboxx2334

    blindboxx2334 Turbo Monkey

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    Do you by chance work at the Hub in roseville?
     
  24. NorCalHub

    NorCalHub Chimp

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    Yes I do.
     
  25. NorCalHub

    NorCalHub Chimp

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    My only guess is that the tire's sidewalls were super fatigued from the Northstar race two weeks prior. The tread was good and the tire looked fine. I didn't notice any burping or weepage and had no performance changes at all before th tire blew off the rim...that's why it's so perplexing. Lot's of attention to details and still having this issue. Bummer for sure
     
  26. Nick

    Nick My name is Nick

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    behind you, don't wait up.
    how is your neck these days?
     
  27. dustyyoungblood

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    This shit rarely happened when we had real UST rims paired with real UST tires.