70MPH into the ground

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by Qwik, Feb 25, 2013.

  1. Qwik

    Qwik Adrenaline Addict

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    Im not saying who (He can if he wants too) and I ask those who know the machine to respect that) A friend of mine who is a member here had a front tire/tube blowout and went down at about 70MPH last night. He and his Pillion were ATGATT and after hitting the pavement were both fine other than minor bruising. The Bike fared very well.
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    Crashbar sustained serious damage
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    Bag is scraped bad but is still plenty useable
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    Scraped the Bark Busters pretty good.
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    The worst damage is the front rim got scraped up bad but with a few minutes work of a file will be okay
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    #1
  2. mousitsas

    mousitsas Long timer

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    amazing!
    I can't even see any serious damage on the crash bars....
    #2
  3. Qwik

    Qwik Adrenaline Addict

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    They are scraped pretty deeply and need to be replaced but they did the job they were designed to do.
    #3
  4. HeatXfer

    HeatXfer Bad knees

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    Tire: Punctured or tube/bead failure? Tubed, Tubeless, balance beads, static or dynamically balanced?

    Sorry, it's the DCI in me - I need to know :nod
    #4
  5. Qwik

    Qwik Adrenaline Addict

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    Factory mounted tire, Stock, Unaltered. Tube. Tire itself looked fine and we couldnt find any puncture marks.
    #5
  6. mjskier

    mjskier Been here awhile

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    I have to say, while I understand the need for spokes on a bike that is ridden off-road, I wouldn't trust a tubed tire at higher speed. A tubeless tire doesn't usually blow up.
    I know some people modify the rim to mount tubeless tires using some sort of goo on the spoke heads. How well does that work, and what happens when you tighten the spokes?
    #6
  7. elnonio

    elnonio shedding n00bness

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    I have done so on my DRZ400SM, sealed the entire channel with adhesive silicone (forget the brand, it's been a few years. I haven't had to adjust the spokes, but considering the amount of silicone in the channel, I don't think it would affect the seal in the least. No tire pressure issues. YMMV,

    http://www.thumpertalk.com/topic/702952-tubeless-setup-on-stock-sm-wheels/
    #7
  8. speedy 1

    speedy 1 Wizard

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    Insurance will probably cover the repair
    but
    If wanted ... I've got a set of crash bars that are new / removed from bike at 1K miles
    #8
  9. Kyler

    Kyler Confused Hack Nut

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    it is an adventure bike, not a show bike. wear those battle scars proudly!
    #9
  10. Qwik

    Qwik Adrenaline Addict

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    Thats kind of his attitude. He said "Well Now Im not worried about taking it offroad"
    #10
  11. traveltoad

    traveltoad Aaron S

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    No rim locks?
    #11
  12. SloMo228

    SloMo228 World Class Cheapass

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    Are you sure it was 70MPH and not 7? That bike looks great for a front rim blowout at freeway speed. Glad to hear that no one was badly injured, too. That's about the best outcome you can ask for with a high-speed get-off. :eek1
    #12
  13. HooliKen

    HooliKen Awesome is a flavor

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    Does he know what the tire pressure was? Unless tube was defective you would think you would have to generate some serious heat to cause a failure.

    One of the first things I did to the SE was fit heavy duty tubes. But I generally do not see much slab time on it.
    #13
  14. traveltoad

    traveltoad Aaron S

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    I have heard that the HD tubes built more heat on the big bike...
    #14
  15. Qwik

    Qwik Adrenaline Addict

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    Knowing the rider's skills (He is a Phenomenal Rider) I would bet the bike hit the ground at less than 50, But from what I am told it happened FAST.
    His Girlfriend on the back said he told her "Somethings wrong with the front end" and then it immediately went sideways (Figuratively and literally) and then they went down.
    #15
  16. jas123

    jas123 Been here awhile

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    I thought I read couple of posts recently of people having other front tire issues on 2012 990 r's. Can't seem to find the posts now.Something about balance and vibration issues. Anyone remember seeing this? Coincedence?
    #16
  17. akarob

    akarob Green Cantern

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    Wow, glad you are ok. The only crash I've had was on a road late at night, hit black ice, got a front end shake and went down for a good slide. Good luck shaking it off.

    That rim is toast, this is your time for an upgrade. :D
    #17
  18. sonoran

    sonoran copacetic

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    Hell my bike as seen worse damage from slower spills.

    Glad nobody got seriously hurt.
    #18
  19. Peanuts

    Peanuts Long timer

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    The front rim is a standard MX style with no safety bead. As soon as it deflates the tyre is free to wander about on the rim, making it really unstable.

    A tubless rim like an Alpina would have kept the tyre in place and the outcome would have been different.

    That said, although the rider was unlucky, overall I think luck was on his side..
    #19
  20. Two Moto Kiwis

    Two Moto Kiwis Homeless Somewhere

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    Yes lucky to say for and unlucky event, I would love to know the cause, we are about t buy a new front tyre for MAya and was looking at those, I see the other thread to with the front end wobble .... it could possibly be a dud batch of tires?

    Anyway, best to you guys and go buy a lotto ticket.
    #20