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, 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.

wangster

what builder? if you say johnny coast I'm gonna kick you.

visitordesign

was it a pista? i learned the same thing when measuring to check geometry for a custom.

shants

well, they might not have been lying. when people give holistic measurements, they don't necessarily refer to seat tube or whatever else.

eddiebrannan

yes it is. tell me what happened with yours please

eddiebrannan

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

MLPROJECT

who's making your new frame short stuff?

Jamtastic

i got paranoid and just measured my 57cm pista and it measured 56 c-t so no big surprise there

visitordesign

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.

visitordesign

i wonder if they mis-decal them sometimes. i guess it's possible.

Jamtastic

wierd visitor. Mine measures just about perfectly 56 c-t... i thought these were mass produced?

visitordesign

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?

eddiebrannan

yeah mine's always looked and felt small to me. now i know why

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.

kennethalan

shrimp.

shants

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.

kennethalan

visitordesign

but the pistas have relatively high bottom brackets (which is actually one of the few things i like about them).

eddiebrannan

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

eddiebrannan

bb drop is measured from the axle to axle line, so less drop = higher bb

chimblysweep

and Eddie, I don't think you're short at all.
to you haters.

eddiebrannan

EnLaCalle

wangster

your still avoiding the question, what builder? are you keeping it a secret?

chimblysweep

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.