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  1. #1
    OldSchool
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    Look at the Size of this Bob Jackson, Show Your Tall Bikes!!!!!!!

    Last edited by cpsqlrwn; 05-07-12 at 12:39 PM.

  2. #2
    Forum Steward cb400bill's Avatar
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    Oh my....

    Laterally stiff yet vertically compliant.

    Viscount Aerospace Pro Trek 770 Cannondale Synapse

  3. #3
    Senior Member Michael Angelo's Avatar
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    For a basket ball player !!

  4. #4
    incazzare. lostarchitect's Avatar
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    Geeze. What do you think that is? 70cm?
    1964 JRJ (Bob Jackson) San Remo Plus, 1989 Trek 520, 2000ish Colian (Colin Laing), 2013 Velo Orange Pass Hunter

  5. #5
    Wookie Jesus inspires me. Puget Pounder's Avatar
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    I saw someone riding a bike roughly that size yesterday. My buddy and I were in awe.

  6. #6
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    Frames that size should have bigger wheels.

    Bill Walton used to ride quite a bit and he eventually had a big frame made for him with additional diagonal tubes to help stiffen it up.

  7. #7
    Senior Member
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    In about 45 states a subject line like that will get you arrested. Or at least investigated.

  8. #8
    Senior Member Mercian Rider's Avatar
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    Looks cool but I think extra tubes might have been in order?
    No Fun. No ride.

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  9. #9
    OldSchool
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    Quote Originally Posted by Picchio Special View Post
    In about 45 states a subject line like that will get you arrested. Or at least investigated.
    That was Jackson, not Johnson!

  10. #10
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    Quote Originally Posted by lostarchitect View Post
    Geeze. What do you think that is? 70cm?
    Pretty close guess!

    Quote from the ebay listing:
    58cm toptube, 68cm seattube, and 28cm headtube
    Last edited by echo; 04-30-12 at 06:03 PM.
    "After all is said and done, a hell lot of a lot more is said than done."

  11. #11
    Senior Member
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    Only 1 bottle cage?? There's room for at least 5 more.

  12. #12
    Pokemon Master Darth_Firebolt's Avatar
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    that's a heck of a reach to the shifters. lol

  13. #13
    Bianchi Goddess Bianchigirll's Avatar
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    Quote Originally Posted by lostarchitect View Post
    Geeze. What do you think that is? 70cm?
    the text on the listing says 68cm C2C ST and 58 TT

    Quote Originally Posted by repechage View Post
    Frames that size should have bigger wheels.

    Bill Walton used to ride quite a bit and he eventually had a big frame made for him with additional diagonal tubes to help stiffen it up.
    I saw a write up on a big custome frame like that years ago.... '89 maye in one of the bike magazines. I am suprised this one does not have an extra TT or something.
    Bianchis '87 Sport SX, '90 Proto (2), '91 Boarala 'cross, '93 Project 3, '88 Trofeo, '86 Volpe, '89 Axis, '79 Mixte SOLD, '99 Mega Pro XL Ti, '97 Ti Megatube, , '90 something Vento 603,

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  14. #14
    z90
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    Quote Originally Posted by repechage View Post
    Frames that size should have bigger wheels.
    It looks like a folder with 20" wheels

  15. #15
    Senior Member Chicago Al's Avatar
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    I'll pass that on to my friend, the gentle giant Montessori teacher who rides a 73cm Colian. He doesn't have a lot of seatpost showing on that bike iirc, maybe he could go smaller.
    I never think I have hit hard, unless it rebounds.

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  16. #16
    Senior Member
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    Just added it to my watch list, I ride a 68cm now but that Jackson has got to weigh a lot less than my Super Grand Prix.

    Looks bigger than my bike though doesn't it?



    Last edited by SteveSGP; 04-30-12 at 07:42 PM.
    My name is Steve and I don't have a bent fork anymore :)

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  17. #17
    Gearhead old's'cool's Avatar
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    Quote Originally Posted by cpsqlrwn View Post
    That was Jackson, not Johnson!
    That begs the question, why doesn't GIANT make a model called the Johnson?
    Geoff
    "I think that I think, therefore I think that I am"

  18. #18
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    Yao Ming's bike:


  19. #19
    ish
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    68cm seat tube with 58cm top tube? That is some messed up geometry for someone with looooooong legs and a relatively short torso.

    It looks like it would wheelie pretty easily.

  20. #20
    Senior Member
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    Quote Originally Posted by FORDSVTPARTS View Post
    Just added it to my watch list, I ride a 68cm now but that Jackson has got to weigh a lot less than my Super Grand Prix.

    Looks bigger than my bike though doesn't it?



    Yes ! there is no way the one in the Ebay listing is ''only'' 68cm if yours is a 68.

  21. #21
    Senior Member Captain Blight's Avatar
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    Yours looks a lot closer to a 64 than a 68; I suppose geometry could account for some of the relative difference in headtube length, but I really don't see the SGP as being an honest 68.

    I know a guy who could ride it (and appreciate it); he's got a Woodrup that size he just had Chris Kvale repaint, but he's always on the lookout for new-to-him and nicer.
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  22. #22
    Senior Member OldsCOOL's Avatar
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    Quote Originally Posted by mainducoyote View Post
    Yes ! there is no way the one in the Ebay listing is ''only'' 68cm if yours is a 68.
    That headtube is a dead giveaway.

    It looks like a circus bike
    Having a flat tire as part of the total cycling experience is highly overrated. Knowing how to fix one quickly is not.

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  23. #23
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    Yesterday, at a swap meet, there was a 28.5-inch c-t 1970s Witcomb for sale. That's 72.4 cm. Biggest dang vintage lugged frame I had ever seen....

  24. #24
    Senior Member
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    Quote Originally Posted by Captain Blight View Post
    Yours looks a lot closer to a 64 than a 68; I suppose geometry could account for some of the relative difference in headtube length, but I really don't see the SGP as being an honest 68.

    I know a guy who could ride it (and appreciate it); he's got a Woodrup that size he just had Chris Kvale repaint, but he's always on the lookout for new-to-him and nicer.
    My other bike is a 64cm.

    I just rechecked the one pictured above and center of crank to the top of the crossbar at the seat tube is 68cm, crossbar is 60cm center to center and the steer tube is 27cm from cup to cup.

    I didn't measure the stand over again but I'm 6'6" with about a 36" inseam and I barely clear the crossbar, I love the bike though because it's the first bike I could ever stretch out on.

    .
    Last edited by SteveSGP; 04-30-12 at 08:56 PM.
    My name is Steve and I don't have a bent fork anymore :)

    1979 Raleigh Competition G.S.- mine
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  25. #25
    Never Nude guygadois's Avatar
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    That's my TT size. A simple hacksaw and pipe couplers and I'm set.
    Bikes: Salsa Fargo Parlee Z1 Holland Pinarello Biemmezeta Della Santa

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