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  • New road frame quest…
  • meandyuk
    Full Member

    I’ve got a trek 1400 aluminium framed road bike and I’d like to get a carbon frame with the a similar geometry.
    It might be a long shot, but is someone more knowledgeable in geometries able to look at my current bike and recommend a similar more modern frame?

    Trek 1400, 2005 model is a 56cm. 73.0 head, 73.8 seat
    More detailed geometry here:

    Any help appreciated!
    Andy

    mrblobby
    Free Member

    What do you mean by similar geometries? Similar handling or something with a similar fit?

    lazybike
    Free Member

    If you mean fit, something with a stack/reach of 575/385 will be close. If you mean handling/feel there’s just no way of knowing untill you ride it.

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    meandyuk
    Full Member

    both fit+handling really, but I guess the handling is what I like about it currently, it feels snappy….

    lazybike
    Free Member

    Those ally canyon slx look nice..

    mtbtomo
    Free Member

    Are current Trek bikes not similar?

    I normally compare angles, top tube and head tube lemgths and that’s generally worked for me. Never really taken the time to compare reach and stack.

    cynic-al
    Free Member

    Speak to hora.

    TiRed
    Full Member

    A 73 degree head angle is very standard for a road bike. The seat tube angle is a little steeper, but saddle position on the rails can compensate for a degree either way (0.8 cm fore and aft). Handling is affected by many things; one of the most important being weight over the front wheel. This is determined by reach (distance from BB to head tube). A shorter reach and longer stem will put more weight over the front wheel, and feel more secure. A longer reach and shorter stem will feel less planted because your weight may be up to 2cm further back – despite having exactly the same relative position with regards to saddle, pedals and bars.

    Based on your current bike, which I assume fits, and may have a 100-110 stem, I’d infer you were approximately 179cm with average proportions, you can go down a size to a virtual top tube of 54.5, and add a longer stem, or pick the same again. I have bikes with 72.5 and 73 degree head tube angles. There isn’t much in it to be honest. I do however prefer a slightly smaller frame and longer stem because I think the handling is better.

    oliverracing
    Full Member

    Speak to hora.

    That’s no way to speak to your customer… oh 🙄

    mrblobby
    Free Member

    <snip… what TiRed said.>

    Also FWIW I’ve got a similar geo old Trek 1200 (58cm) that I use as a training bike, though set up with a long low stem and quite a bit of post showing. Other than it being a bit harsh I quite like it and put in a lot of winter miles on it. Race bike is a TCR Advanced (M/L) which I love. Just such a good bike. If you’re looking for something like that then may be worth a try just on the basis that both do me fine.

    TiRed
    Full Member

    And I’d second trying out a Medium Giant TCR. 73 degrees parallel and 55.5 cm top tube. Cracking all round bike. Or a Propel if you fancy something aero, same geometry but different tube profiles.

    meandyuk
    Full Member

    I’ve been looking at the tcr and have been offered a 2013 tcr advanced sl (red+black+white) frame & fork for £1000. I would obviously go try the bike out first but do you think this a good deal? and has the frame changed much from 2013 to 2015, other than the colour scheme? It is the non-ISP version.

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