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  1. #1
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    Tubeless question

    I did the test of Metal yesterday and flatted my front tire while on a rough fast downhill. The air went out quickly, like a pinch flat type situation. I'm running tubes wheels with Small block 8s (non tubeless) with sealant. Without thinking I threw a tube in. Now I'm thinking I should have just shot some air back in since I must of unseated the bead. What do you guys do in this situation?

  2. #2
    The Missing
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    when I have a flat I use a C02 first to see if that will pump some life back into the tire

    if that fails then I throw on a tube and use another C02

  3. #3
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    Quote Originally Posted by pernfilman View Post
    when I have a flat I use a C02 first to see if that will pump some life back into the tire, if that fails then I throw on a tube and use another C02
    +1, I do the same

  4. #4
    www.bigrobracing.co.uk
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    If the air comes out the bead you often hear a recognisable "burp" sound

    As an owner of several paira of SB8s over recent years, they are quite thin in non-ust form and, when run tubeless, make super fast light tyres, but are prone to tears that won't seal with sealant. Sounds like you pinched them and tore too big of a hole to seal.

    Worth inflating and investigating, 99% of holes like this can be plugged, like this below from the weekend, fixed by me without deflating the tyre or even removing the wheel from the bike!



    But, SB8s are fragile: SEE HERE



    Hope that helps

  5. #5
    LMN
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    Depends on how many Co2s you have. If you have multiple ones then try adding air first, but if you only have one throw a tube in.
    "The best pace is suicide pace, and today is a good day to die." Steve Prefontaine

  6. #6
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    I donít think freezing gas is good for latex based sealant. I could be wrong though.

  7. #7
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    I did same order as you. Figured out pinch flatted tire wasn't going to seal. Threw in tube. Was a little short on CO2. Now I carry an extra canister. I would much rather DFL than DNF.
    Oh sh!+ just force upgraded to cat1. Now what?
    Best thing about an ultra marathon? I just get to ride my bike for X hours!

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