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  1. #1
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    Help with C-C sizing

    I'm really confused about the whole C-C sizing for a bike that I'm going to order online (Mercier Kilo TT,
    Save Up to 60% Off Fixie | Fixed Gear | Track Bicycle | Mercier Track Bikes | Singlespeed Bikes - Kilo Stripper). I used the fit calculator and it looks like I need either a 53cm(56C-T) or a 55cm(58C-T). To me it looks like I'm in between these sizes but I could be misunderstanding the whole fit guide. Which one would be a better choice for me? Thanks

    My measurements:
    Actual Inseam: 33 In
    Trunk: 25 In
    Forearm: 14.5 In
    Arm: 26 In
    Thigh: 24 In
    Lower Leg: 22.5 In
    Sternal Notch: 66 In
    Total Height: 70 In

    Eddy fit:
    Top Tube Length 56.2 - 56.6 Cm
    Seat Tube Range CC 55.5 - 56 Cm
    Seat Tube Range CT 57.2 - 57.7 Cm
    Stem Length 10.1 - 10.7 Cm
    BB Saddle Position 76 - 78 Cm
    Saddle Handlebar 55.1 - 55.7 Cm
    Saddle Setback 5.6 - 6 Cm
    Seatpost Type Setback

    Competitive fit:
    Top Tube Length 56.2 - 56.6 Cm
    Seat Tube Range CC 54.3 - 54.8 Cm
    Seat Tube Range CT 56 - 56.5 Cm
    Stem Length 11.2 - 11.8 Cm
    BB Saddle Position 76.8 - 78.8 Cm
    Saddle Handlebar 54.3 - 54.9 Cm
    Saddle Setback 4.4 - 4.8 Cm
    Seatpost Type Not Setback

    French fit:
    Top Tube Length 57.4 - 57.8 Cm
    Seat Tube Range CC 57.2 - 57.7 Cm
    Seat Tube Range CT 58.9 - 59.4 Cm
    Stem Length 10.3 - 10.9 Cm
    BB Saddle Position 74.3 - 76.3 Cm
    Saddle Handlebar 56.8 - 57.4 Cm
    Saddle Setback 5.1 - 5.5 Cm
    Seatpost Type Setback

  2. #2
    coprolite fietsbob's Avatar
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    C-C to my knowledge means center to center , to find center to top you add the radius of the tube..



    since you are wanting a bikes direct, no dealer, bike .. ask them . It's their business not mine ..



    if you cannot buy a bike from past sizing knowledge of your own bikes

    that may not be the place to get your bike.. and you should spend the money to get a bike you can test ride first.

    .. and will be set up and ready to ride.

    and have the Local shop help available after the sale..
    Last edited by fietsbob; 05-13-14 at 08:23 AM.

  3. #3
    Senior Member
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    2009 Surly Cross Check Frankenbike
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    The geometry chart for that bike indicates steep angles and real high bottom bracket. That is not exactly the type of bike that fit calculator was created for. Plus, I think you are hung up on seat tube measurements, which probably aren't really the primary issue.

    I'm with fietsbob, this may not be a good way for you to go.

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