Worth going tubeless?

Discussion in 'Cyclocross (CX), Duathlon and Triathlon' started by Red17, 18 Sep 2017.

  1. Red17

    Red17 Über Member

    South London
    Ended up with a dnf yesterday after a puncture and was wondering if it was worth going tubeless?

    My wheels are tubeless ready so would just need some sealant and valves I think.

    Would tubeless reduce chance of punctures or would I be better off just playing with higher pressures (I was running 35psi front and back@ 76kg)
  2. Afnug

    Afnug Everything you can imagine is real

    I did a MTB Orienteering event last year, the farmers had been out cutting loads of hedges I passed a lot of people with punctures, back at the finish the people who were running tubeless had no problems, I run them on the CX and MTB I think it is worth it if it stops a DNF.
  3. mjr

    mjr Comfy armchair to one person & a plank to the next

    Depends why you punctured. If you had pinch flats (snakebites) then higher pressures might be worth a go. Pressure depends on tyre width and slightly tyre type as well as your weight. If it was pinpricks, sealant might instantly repair them well enough to finish.
  4. Profpointy

    Profpointy Guru

    If you get a puncture with a tubeless tyre, do you just whack a tube in?

    Serious question by the way. Having only once had a tubeless motorcycle puncture I can confirm the can of gloop was useless fixing a nail through the sidewall.
  5. Sea of vapours

    Sea of vapours Über Member

    Putting a tube in is about the third response to a puncture.
    1. In theory, the sealant will duly seal it, mostly without you even being aware you've punctured. Occasionally it'll take a while to seal and it's obvous since some sealant sprays out for a short while before sealing the hole. In practice I've had one of the latter type in 21,000km of using tubeless and it took about a minute to seal and lost only 10psi (of 75psi) in that time. All other punctures sealed without my knowing about them until I took the tyre off (at which point you can see clumps of sealant over the holes).
    2. If it doesn't seal then you can use small, purpose-made strips of rubber pushed into the hole. I've never had to do that.
    3. If that doesn't work, putting a tube in certainly should. I've never had to do that either (though I've practised to make sure it works, and it does).
    4. Huge gashes in the sidewall are going to need a tyre boot or a new tyre. In the former case, sticking said boot to the sealant-covered rubber may not be as easy due to the sealant, but is allegedly still possible.
    HLaB and Profpointy like this.
  6. Profpointy

    Profpointy Guru

    Thanks for comprehensive and logical reply. Maybe I'll go for tubless when I wear my rims out
  7. screenman

    screenman Legendary Member

    I would have answered the same as SofV, I have taken 14 thorns out of one tubeless tyres when checking at service time.

    I would not go back to tubes in the MTB.
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