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Old 04-30-12, 05:17 PM   #1
cpsqlrwn
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Look at the Size of this Bob Jackson, Show Your Tall Bikes!!!!!!!

http://www.ebay.com/itm/Bob-Jackson-...item3cc5afe185

Last edited by cpsqlrwn; 05-07-12 at 12:39 PM.
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Old 04-30-12, 05:18 PM   #2
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Oh my....

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Old 04-30-12, 05:23 PM   #3
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For a basket ball player !!
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Old 04-30-12, 05:24 PM   #4
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Geeze. What do you think that is? 70cm?
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Old 04-30-12, 05:31 PM   #5
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I saw someone riding a bike roughly that size yesterday. My buddy and I were in awe.
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Old 04-30-12, 05:41 PM   #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.
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Old 04-30-12, 05:46 PM   #7
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In about 45 states a subject line like that will get you arrested. Or at least investigated.
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Old 04-30-12, 05:53 PM   #8
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Looks cool but I think extra tubes might have been in order?
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Old 04-30-12, 05:55 PM   #9
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In about 45 states a subject line like that will get you arrested. Or at least investigated.
That was Jackson, not Johnson!
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Old 04-30-12, 05:59 PM   #10
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Geeze. What do you think that is? 70cm?
Pretty close guess!

Quote from the ebay listing:
Quote:
58cm toptube, 68cm seattube, and 28cm headtube

Last edited by echo; 04-30-12 at 06:03 PM.
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Old 04-30-12, 06:03 PM   #11
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Only 1 bottle cage?? There's room for at least 5 more.
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Old 04-30-12, 06:06 PM   #12
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that's a heck of a reach to the shifters. lol
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Old 04-30-12, 06:09 PM   #13
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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.
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Old 04-30-12, 06:20 PM   #14
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Frames that size should have bigger wheels.
It looks like a folder with 20" wheels
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Old 04-30-12, 06:24 PM   #15
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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.
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Old 04-30-12, 07:00 PM   #16
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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.
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Old 04-30-12, 07:26 PM   #17
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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?
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Old 04-30-12, 07:34 PM   #18
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Yao Ming's bike:

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Old 04-30-12, 07:42 PM   #19
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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.
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Old 04-30-12, 07:52 PM   #20
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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?



Yes ! there is no way the one in the Ebay listing is ''only'' 68cm if yours is a 68.
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Old 04-30-12, 07:59 PM   #21
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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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Old 04-30-12, 08:01 PM   #22
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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
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Old 04-30-12, 08:41 PM   #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....
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Old 04-30-12, 08:52 PM   #24
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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.
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.

.

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Old 05-01-12, 12:51 AM   #25
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That's my TT size. A simple hacksaw and pipe couplers and I'm set.
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