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road/track bike sizing

  • 18-03-2009 5:56pm
    #1
    alritelad
    Closed Accounts Posts: 45 ✭


    i know this is a similar topic to one posted earlier, but i wasn't sure whether i should add to or start a new topic.

    i have mentioned before that i am buying a fixed gear track bike and am wondering what is the best method to ascertain frame size.

    i am 6' and some change (less than 6' 1") and have a 33" inseam. should i get a 57 or 59cm frame?


Comments

  • #2
    crown of storms
    Closed Accounts Posts: 46 ✭crown of storms


    i'm that height and i have a 59. i certainly wouldn't want anything smaller personally.


  • #3
    alritelad
    Closed Accounts Posts: 45 ✭alritelad


    cool. i know the geometry is different in track bikes, and the bottom bracket is higher. does that mean that standover height is higher? this is possible a very ridiculous question.

    what i ultimately want to know is: is a 59cm track bike going to have a higher standover height than a 59cm road bike? and also, is it a trackbike you own crown of storms?


  • #4
    crown of storms
    Closed Accounts Posts: 46 ✭crown of storms


    yea, it's a track bike i'm on- it has a horizontal top tube so the bike feels quite big but i like it that way!


  • #5
    alritelad
    Closed Accounts Posts: 45 ✭alritelad


    ok perfect. just a tiny bit more information. are you a 33" inseam? and can you stand over the bar without castrating yourself?!

    thanks so much for your help


  • #6
    crown of storms
    Closed Accounts Posts: 46 ✭crown of storms


    i'm a 33 myself and it's fine-a bit of clearence!


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  • #7
    alritelad
    Closed Accounts Posts: 45 ✭alritelad


    excellent! thanks again


  • #8
    Morgan
    Registered Users, Registered Users 2 Posts: 2,481 ✭✭✭Morgan


    alritelad wrote: »
    i know this is a similar topic to one posted earlier, but i wasn't sure whether i should add to or start a new topic.

    i have mentioned before that i am buying a fixed gear track bike and am wondering what is the best method to ascertain frame size.

    i am 6' and some change (less than 6' 1") and have a 33" inseam. should i get a 57 or 59cm frame?

    Would you consider a 58cm???
    It depends completely on the bike/frame - e.g. whether the top tube is sloping or flat, top tube length etc. The top tube length is just as important as the seat tube length when determining bike-fit.
    Best method is to measure a frame that you know fits you well and go from there.
    BB height doesn't necessarily affect standover - once again depends on the frame.


  • #9
    alritelad
    Closed Accounts Posts: 45 ✭alritelad


    i would if one existed! it's a flat top tube. thanks for the help


  • #10
    Lumen
    Registered Users, Registered Users 2 Posts: 31,230 ✭✭✭✭Lumen


    I'm 6' with short legs/long torso and have a 54cm road bike, a 54cm cross bike, a 56cm cross bike, and a 58cm road bike.

    The 54cm road bike is too small.
    The 58cm road bike is a little too big.
    Both cross bikes feel fine.

    So, it rather depends on geometry, but I'd guess a 57 will fit you better than a 59.

    Inseam measurement is easy to get wrong - not the same as trouser measurement as you're supposed to press up with the normal force of a saddle, and that's tricky (usually involves a broomstick and willing accomplice).


  • #11
    blorg
    Registered Users, Registered Users 2 Posts: 15,995 ✭✭✭✭blorg


    Regarding your 58cm road bike :), I had swapped the stock 20mm setback seatpost for a 5mm setback one, it felt a bit big until I did that but was fine after. You could also get a shorter stem, reckon 100mm would do the job.


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  • #12
    Lumen
    Registered Users, Registered Users 2 Posts: 31,230 ✭✭✭✭Lumen


    blorg wrote: »
    Regarding your 58cm road bike :), I had swapped the stock 20mm setback seatpost for a 5mm setback one, it felt a bit big until I did that but was fine after. You could also get a shorter stem, reckon 100mm would do the job.

    LOL. I undid your good work by shoving the seat all the way back in order to achieve "KOPS", which may be a myth but seemed a good starting point. Have thought about the shorter stem, but plan to do a few more miles before I commit. :)


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