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Tubeless fail

secretsamsecretsam Posts: 5,039
in Workshop
New to the tubeless game, so apologies in advance for cluelessness.
So, descending at speed down a gravel trail at local forest, I hit *something* hard and suffered an instant flat.
Pulled over, no obvious puncture so I pumped up tyre, but it kept losing pressure, and eventually came off. Loads of sealant still in tyre but would not seal, resorted to a tube. Was it just that I had unseated the tyre and lost my seal, and my pathetic mini-pump couldn't re-seal? Help!
Setup: 700x35 Panaracer Gravel King SK, Stan's sealant.
It's just a hill. Get over it.

Posts

  • oxomanoxoman Posts: 11,732
    Sounds like it's just come off the rim, can happen especially at lower pressures on rough stuff. I always have a Co2 inflator for occasions like this. Another info point is as follows.
    https://thecycleclinic.co.uk/pages/tech-page
    Too many bikes according to Mrs O.
  • secretsamsecretsam Posts: 5,039
    Yeah, CO2 inflator lives with the road bike, might give it a new home. I really hit the bump at speed, I am wondering if I literally knocked the tyre off the rim.
    It's just a hill. Get over it.
  • oxomanoxoman Posts: 11,732
    It does happen, I've done it a couple of times on my mtb but never on the cx since converting.
    Too many bikes according to Mrs O.
  • davidofdavidof Posts: 3,021
    Oh and carry a spare inner tube and pump for when the C02 cartridge fails to inflate the tire and you are 50 miles from home.
    BASI Nordic Ski Instructor
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  • secretsamsecretsam Posts: 5,039
    davidof said:

    Oh and carry a spare inner tube and pump for when the C02 cartridge fails to inflate the tire and you are 50 miles from home.

    Yup, tube is a constant, pump is attached to bike!
    It's just a hill. Get over it.
  • vegas76vegas76 Posts: 278
    I've had this happen once, when my tyres were pretty low and the front tyre burped and lost pressure. Thankfully I had a tube which I could insert.

    With gravel, there's a trade off between confidence and comfort.
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