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HIM races - Clincher or Tubular Tyres

  • 05-02-2010 10:29am
    #1
    tri111
    Closed Accounts Posts: 67 ✭✭


    What does everyone think is the best type of tyre to use in a HIM race situation - Clinchers or Tubulars? I'm thinking more in terms of being able to fix a puncture quickly rather than all out speed.

    I will be doing a Half Ironman race in the summer. And I will need to be able to fix a puncture at speed if I get one so which is better to have in terms of fixing flats? I can fix clinchers fairly quickly but I've never had to fix a tubular before so don't actually know how. I'm aware they are glued onto the wheel so would this make it virtually impossible to fix a flat within 5 mins? I assume a whole new tyre would need to be glued on which I'm guessing would take a long time?

    Any thoughts appreciated.


Comments

  • #2
    shotgunmcos
    Registered Users, Registered Users 2 Posts: 8,208 ✭✭✭shotgunmcos


    tri111 wrote: »
    I'm thinking more in terms of being able to fix a puncture quickly rather than all out speed.
    .

    Clinchers then...

    Yeah they say tubs roll faster and are more punture resistant as well as being a tad lighter so for speed get them. However you say fixing a puncture quickly is the focus then a clincher is the bet. 5 mins to whip off the old tube with tyre levers, pop in the new one and pump furiously (or C02 it). 5 mins but you still get to finish the race...

    Just my 2c.


  • #3
    tunney
    Registered Users, Registered Users 2 Posts: 12,584 ✭✭✭✭tunney


    shotgunmcos wrote: »
    Clinchers then...

    Yeah they say tubs roll faster and are more punture resistant as well as being a tad lighter so for speed get them. However you say fixing a puncture quickly is the focus then a clincher is the bet. 5 mins to whip off the old tube with tyre levers, pop in the new one and pump furiously (or C02 it). 5 mins but you still get to finish the race...

    Just my 2c.

    A puncture on a tub can be changed much quicker.

    Clinchers can possibly have a lower CRR(1) however alot of the figures thrown about are based on flawed research(2).

    Tubs roll nicely IMHO, they are lighter and this weight is removed from the rim so its rotational weight thats reduced so thats even more important(3)


    There is the difficulty of carrying spare tubs as opposed to multiple spare tubes but as others have said for most a puncture is the end of the race.

    I have/had tubs. That being said I'd consider clinchers as glueing tubs on is a pain (and tape is terrible, might as well put a parachute on your back) and I've broken more windows and doors in rage.

    (1)CRR = Rolling resistance http://www.analyticcycling.com/ForcesTires_Page.html
    (2)http://www.biketechreview.com/tires/images/AFM_tire_testing_rev6.pdf
    (3)http://www.analyticcycling.com/WheelsConcept_Page.html


  • #4
    Dowee
    Registered Users, Registered Users 2 Posts: 311 ✭✭Dowee


    On the assumption that you are not going to be competing for a podium place it has got to be clinchers. A puncture with a tub would most likely be the end of your race whereas not so with a clincher.

    You'd be pretty sick if after 70 or 80km you got a puncture and couldn't finish the race.


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