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Size advice

  • 22-09-2012 9:20am
    #1
    245
    Closed Accounts Posts: 760 ✭✭✭


    Hi,

    I was looking at a Lapierre yesterday - I tried out an Audacio size medium (top tube length 547mm) and thought that it felt a bit small - the sales guy reckoned that I shouldn't be able to see the front axle (handlebars should block view) but the axle was well in front of the bars when I was in the hoods. He suggested a longer stem but it already had what looked like a longish stem fitted (at least 100mm)I then tried a Large which has a top tube length of 565mm. This felt much better but I felt that I was reaching a bit for the hoods. It had a 110 stem and I felt that I'd be more comfortable with a 90 or maybe 80 stem.

    My inseam measurements suggest that my ideal top tube length should be 540mm so on paper the smaller bike is the correct fit but the shorter stem on the larger bike would get me into the same ballpark and I thought that it felt better. I had a Giant previously with a top tube length of 555 mm and that was always too big for me even with a short stem. The geometry if the Lapierre is different but would the general wisdom be that I'm much better off with a longer stem on the smaller Lapierre frame? I'm concerned that I just don't know what a correctly sized bike should feel like..


Comments

  • #2
    letape
    Registered Users, Registered Users 2 Posts: 2,928 ✭✭✭letape


    Personally I would prefer buy the smaller frame and have a longer stem. A 100mm or 110mm stem wouldn't be considered long. If you buy a frame that is too big, it is harder to get it to fit right.

    Your inseam generally wouldn't influence the length of the top tube, rather your saddle height. Your torso and arm length would determine the top tube that length.

    If it was me, id consider it worthwhile to get a big fit done. Alternatively I'd buy the bike that fits closest to your old one, if you were happy with that.


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