tt frame sizing

jerome3
jerome3 Posts: 209
edited September 2011 in Amateur race
hi looking to buy a tt frame seen one on the for sale section its a 53.5 top tube im 5'8"
tall and ride a 54cm r3sl road bike was wondering if this fame would be a good size or do you need to size down?

Comments

  • Tom Butcher
    Tom Butcher Posts: 3,830
    Typically you need a shorter top tube for a TT bike than on your road bike.
    it's a hard life if you don't weaken.
  • jerome3
    jerome3 Posts: 209
    how much shorter
    thanx
  • jerome3
    jerome3 Posts: 209
    how much shorter
    thanx
  • Tom Butcher
    Tom Butcher Posts: 3,830
    It'll depend on geometry - put it this way - my TT bike is 2cm shorter with a 3cm shorter stem and if anything it's still too long - but I'm on a bigger bike than you so the change is proportionally less.

    I think sizing a TT bike is harder than a road bike - geometry probably has a wider range of angles and people have very different preferred positions.

    I wouldn't want to go further than that as I'm only a very occasional TTer.
    it's a hard life if you don't weaken.
  • mattshrops
    mattshrops Posts: 1,134
    can you find a local(ish) shop with that bike in stock? Go and try it out then boombadabing. :D
    Death or Glory- Just another Story

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