Time Trial Bike Sizing

RowCycle
RowCycle Posts: 367
edited September 2011 in Road buying advice
Hello,

Just wondering...

How do I convert sizing from a road bike to a time trial bike? I have 60cm and 62cm road bike frames, what sort of time trial specific frame sizing would this compare to?

(I know to do it properly I need a bike fit, but was just wondering at this stage)

Thanks

Comments

  • hopper1
    hopper1 Posts: 4,389
    Usually go down 1 size...
    Start with a budget, finish with a mortgage!
  • rjsmith
    rjsmith Posts: 1,924
    Be careful though as many TT frames these days have taken TT geometry into account for their sizing already, so the same size frame has a shorter Tt, lower HT etc.
    E.g I ride a Scott 56cm road bike and would use the 56cm TT frame from them, which has the geometry adjusted already. A 54cm TT frame from Scott would be too small.

    In the olden days when road frames were often used as TT bikes, yes, a size down was good advice.
  • richk
    richk Posts: 564
    You could try using the fit calculator here http://www.competitivecyclist.com/za/CCY?PAGE=FIT_CALCULATOR_INTRO as a starting point for your required geometry
    There is no secret ingredient...

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