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  1. #1
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    odd Bianchi frame geometry

    OK BianchGiirl, wake up and chime in.

    I have this Bianchi in Columbus SL but which seems unusual to me so I hope I can get some background.

    the basic triangle is 58cm ST x 57cm TT.
    but they have added this odd 6cm extension on the ST and Steering Tube.
    So for what size rider this was intended - a normal 58cm rider or a
    really tall 62-64 cm rider who wants a smaller more rigid triangle?

    can anyone shed light here? was this a fad at some point that faded?
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  2. #2
    Large Member realestvin7's Avatar
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    Seems odd to me. Then again, it's newer than what I normally mess with.
    Build a drop bar do-it-all MTB!
    For Sale / Trade:
    1985 Cannondale Road F/F - 56cm ST/56cm TT
    1988 Cannondale SM1000 MTB F/F 20" ST/ 56cm TT
    Kuwahara Puma MTB F/F - 19" ST/56cm TT
    Trek 7000 MTB F/F -17" ST/55cm TT
    Alpine MTB F/F - 23" ST/59cm TT
    Ross Hi-Tech MTB F/F - 20" - 21" ST/57cm TT
    Peugeot PR10 Road F/F - 62.5cm ST/60cm TT

  3. #3
    Bianchi Goddess Bianchigirll's Avatar
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    very interesting. is there any Bianchi embellishments on the frame?

    I am not certain of the ST but I knew a Gent who had a Spectrum built with an extra 4 or so inches of HT. he bad a bad back and this let him sit up a bit without a funky stem.

    as for the ST tube that is odd. I'll peek through the catalogs tomorrow and see is I see anything like it.

    Bianchis '87 Sport SX, '90 Proto (2), '91 Boarala 'cross, '93 Project 3, '88 Trofeo, '86 Volpe, '89 Axis, '79 Mixte, '99 Mega Pro XL Ti, '97 Ti Megatube, , '90 something Vento 603,

    Others but still loved,; '80 RIGI, '80 Batavus Professional, '87 Cornelo, '86 Bertoni (sold), '09 Motobecane SS, '98 Hetchins M.O., '09 K2 Mainframe, '89 Trek 2000, '?? Jane Doe (still on the drawing board), '90ish Haro Escape

  4. #4
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    more photos

    here's a photo gallery:

    https://picasaweb.google.com/TOcycle...8cmTTFrame350#

    It is in lamentable condition. some pinhead left it out side in the elements for 6months. Needs a repaint.
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  5. #5
    Bianchi Goddess Bianchigirll's Avatar
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    where did you get this? was there any Canadain teams sponsored by Bianchi? I missed the number tab lastnight. I wonder if this is some pro or semi pro frame that was built like that to provide a stiffer frame for a taller tider. if it had 650 wheels I would say for sure that yes the extended tubes are for a stiffer TT frame. the team theory may also explain the lack of tubing decals on the frame
    Bianchis '87 Sport SX, '90 Proto (2), '91 Boarala 'cross, '93 Project 3, '88 Trofeo, '86 Volpe, '89 Axis, '79 Mixte, '99 Mega Pro XL Ti, '97 Ti Megatube, , '90 something Vento 603,

    Others but still loved,; '80 RIGI, '80 Batavus Professional, '87 Cornelo, '86 Bertoni (sold), '09 Motobecane SS, '98 Hetchins M.O., '09 K2 Mainframe, '89 Trek 2000, '?? Jane Doe (still on the drawing board), '90ish Haro Escape

  6. #6
    rhm
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    multimodal commuter rhm's Avatar
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    I think need more photos.


    Do I see this correctly: down tube has lugs at both ends, top tube is fillet brazed at both ends? That strikes me as... uh... odd.

    I agree the paint is in lamentable condition. Lament all you want, but do not repaint. Take a look at Mkeller's thread on his Mercian, which was in similar condition, and he did an admirable job saving the paint.

  7. #7
    Senior Member bobbycorno's Avatar
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    Quote Originally Posted by rhm View Post
    I think need more photos.


    Do I see this correctly: down tube has lugs at both ends, top tube is fillet brazed at both ends? That strikes me as... uh... odd.

    I agree the paint is in lamentable condition. Lament all you want, but do not repaint. Take a look at Mkeller's thread on his Mercian, which was in similar condition, and he did an admirable job saving the paint.
    Not to be picky or anything, but that looks more like a TIG weld than a fillet. And is that a crack on the head tube (on the tt weld bead)? Also, the number hanger under the tt makes me think it was custom made for a (very) tall team rider.

    SP
    Bend, OR

  8. #8
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    Quote Originally Posted by Bianchigirll View Post
    where did you get this?
    this came from France.
    I am checking with the former owner about its provenance.
    Last edited by pstock; 05-26-11 at 12:03 PM.

  9. #9
    Bianchi Goddess Bianchigirll's Avatar
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    AH the plot thickens....

    the colors look like the lats'90s every early '00s when Mercatone Uno team was riding Bianchis
    Bianchis '87 Sport SX, '90 Proto (2), '91 Boarala 'cross, '93 Project 3, '88 Trofeo, '86 Volpe, '89 Axis, '79 Mixte, '99 Mega Pro XL Ti, '97 Ti Megatube, , '90 something Vento 603,

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  10. #10
    Senior Member ftwelder's Avatar
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    The top tube is joined to the head tube with TIG. Someone chopped the top off of a lugged bike and made it taller. I would bet the head tube has been spliced. Look at the way the wheel relates to the rear brake also.

    I would look very closely at this one before purchasing.
    Last edited by ftwelder; 05-27-11 at 03:11 AM.
    1886 Surrey machinists Invincible, 1900 Nashua, 1937 Raleigh Golden Arrow, 1938 Raleigh Silver Record, 1951 Armstrong tourmalet, 1970 Motobecane Grand Record, 1971 Raleigh Professional, 1971 Gitane TDF, 1972 Legnano Gran Primio, 1973, Peugeot PX-10, 1975 Roberts, 1984 Battaglin Giro, 1985 Grandis Speciale, 2012 FTW

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  11. #11
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    I own it already.
    But I appreciate you good eye and advice and I will have it checked carefully before I or anyone else dares to ride it.

    It was cheap (no big surprise there) and I figured the Record gear, in as sad shape as it is, was worth the purchase price. And if the frame proved interesting or salvagable, all the better.

    Turns out it was "Prepared" (I am not sure if that means modified or custom built for the seller's brother in law, an ex-basketball player who measures 1m92 (6'6").

    The forks have "Bianchi" stamped dropouts. I don't see anything though on rear dropouts. Once I clean off the BB Shell bottom, I'll see if there is any SN.

    Peter

  12. #12
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    (oopps duplicate post.)

  13. #13
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    Why though would anyone bother to chop the top off a good 58cm Bianchi, graft on extensions and then presumably repaint the whole thing in Bianchi colours?
    Over here at least all that work would have cost between $500 and $1000
    it would have been far far cheaper to just search around for a good 62 cm steel frame.
    A mod job makes no sense. Does it?

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