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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 01-11-06, 02:32 PM   #1
eddiebrannan
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I have been living a lie

I am having a bicycle frame made for me, so to confirm the actual measurements of my current bicycle—which i had been led to believe was a 53cm—i broke out the tape measure, and was staggered to find that all this time i have been riding a bicycle with a 50cm c-t seat tube!

I am smaller than I thought.
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Old 01-11-06, 02:34 PM   #2
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what builder? if you say johnny coast I'm gonna kick you.
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Old 01-11-06, 02:34 PM   #3
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was it a pista? i learned the same thing when measuring to check geometry for a custom.
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Old 01-11-06, 02:36 PM   #4
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well, they might not have been lying. when people give holistic measurements, they don't necessarily refer to seat tube or whatever else.
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Old 01-11-06, 02:39 PM   #5
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Originally Posted by visitordesign
was it a pista? i learned the same thing when measuring to check geometry for a custom.

yes it is. tell me what happened with yours please
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Old 01-11-06, 02:41 PM   #6
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Originally Posted by shants
well, they might not have been lying. when people give holistic measurements, they don't necessarily refer to seat tube or whatever else.

well in a dozen plus years of owning and riding and buying bikes i've always taken the number to refer to seat tube length
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Old 01-11-06, 02:41 PM   #7
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who's making your new frame short stuff?
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Old 01-11-06, 02:42 PM   #8
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i got paranoid and just measured my 57cm pista and it measured 56 c-t so no big surprise there
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Old 01-11-06, 02:43 PM   #9
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it was supposed to be a 57 and was *almost* a 55. it always felt small--because it was. i wondered why i needed an extra long thomson seatpost for a bike that was supposed to be my size.

my jackson is a 58, which should be much better when it gets here.
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Old 01-11-06, 02:44 PM   #10
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i got paranoid and just measured my 57cm pista and it measured 56 c-t so no big surprise there
i wonder if they mis-decal them sometimes. i guess it's possible.
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Old 01-11-06, 02:45 PM   #11
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wierd visitor. Mine measures just about perfectly 56 c-t... i thought these were mass produced?
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Old 01-11-06, 02:47 PM   #12
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wierd visitor. Mine measures just about perfectly 56 c-t... i thought these were mass produced?
they are, which maybe lends itself to errors with things like decals? i don't know... the person helping me suss out my geometry was as surprised as i was to realize such a big difference.

i wonder if anyone other than eddie and i have the same issue?
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Old 01-11-06, 02:49 PM   #13
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yeah mine's always looked and felt small to me. now i know why
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Old 01-11-06, 02:56 PM   #14
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don't let the BB drop screw you up. Some people tag Pista's with a 'feels like' size, since they're sold in stores next to road bikes to people who wouldn't understand why they suddenly need a 50 instead of a 53.

track bikes have ~6cm of bb drop instead of a 8cm road or 10cm touring frame drop. that means that to get the same standover as a 53 with 8cm of drop, you need a 51.

instead of freaking out customers, they just fudge the sizing.

it's like, i ride a ~51 road bike, but my 49 3rensho fits great and the 47.5 3rensho is surprisingly close to fitting me. I expected a 47.5 to feel tiny, but add 3cm to that for the high bb clearance, and there you go.
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Old 01-11-06, 02:58 PM   #15
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shrimp.
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Old 01-11-06, 02:58 PM   #16
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are the other measurements that bianchi gives on their website (bianchiusa) correct or are all of them of a 50/51? it'd be interesting to see if it's a problem with labelling or if the factory just doesn't have very good quality control.
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Old 01-11-06, 02:58 PM   #17
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Old 01-11-06, 02:59 PM   #18
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but the pistas have relatively high bottom brackets (which is actually one of the few things i like about them).
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Old 01-11-06, 03:00 PM   #19
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Quote:
Originally Posted by chimblysweep
don't let the BB drop screw you up. Some people tag Pista's with a 'feels like' size, since they're sold in stores next to road bikes to people who wouldn't understand why they suddenly need a 50 instead of a 53.

track bikes have ~6cm of bb drop instead of a 8cm road or 10cm touring frame drop. that means that to get the same standover as a 53 with 8cm of drop, you need a 51.

instead of freaking out customers, they just fudge the sizing.

it's like, i ride a ~51 road bike, but my 49 3rensho fits great and the 47.5 3rensho is surprisingly close to fitting me. I expected a 47.5 to feel tiny, but add 3cm to that for the high bb clearance, and there you go.

yeah i understand all that.

this changes everything. i guess i need a 52/52 measured c-to-c on both top and down tubes.

enlightening, because i'd been looking at larger bikes on e-framebank
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Old 01-11-06, 03:01 PM   #20
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Originally Posted by visitordesign
but the pistas have relatively high bottom brackets (which is actually one of the few things i like about them).
bb drop is measured from the axle to axle line, so less drop = higher bb
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Old 01-11-06, 03:05 PM   #21
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and Eddie, I don't think you're short at all.
to you haters.
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Old 01-11-06, 03:07 PM   #22
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and Eddie, I don't think you're short at all.
to you haters.

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Old 01-11-06, 03:14 PM   #23
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Old 01-11-06, 03:15 PM   #24
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your still avoiding the question, what builder? are you keeping it a secret?
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Old 01-11-06, 03:16 PM   #25
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Quote:
Originally Posted by eddiebrannan
I am having a bicycle frame made for me, so to confirm the actual measurements of my current bicycle—which i had been led to believe was a 53cm—i broke out the tape measure
eddie- without knowing who's building this rocketship, i gotta recommend you visit your builder if it's possible. it's one thing to send in measurements of your bianchi, but what if you're riding the wrong size right now? you should make sure to send at least your personal measurements with the Bianchi's.

besides, i gotta tell you, it's awesome to have held my fork crown. you should visit your builder if only to fondle your lugs lovingly if you have the opportunity.
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