# Motobecane Fixie Cafe - Geometry Question

• 04-18-14, 09:35 PM
flatwhite
Motobecane Fixie Cafe - Geometry Question
I am looking for a bike for my wife. She's short and has already been fitted at an LBS. The bike I am interested in is from BD (NEW Motobecane Fixie Cafe). I was looking at the geometry but something seems really off.

Geometry: http://www.bikesdirect.com/products/...fixie-geo.html

Attachment 375547

Bike description: http://www.bikesdirect.com/products/...-bar-bikes.htm

The stand over (SO) is 501mm for a 43cm bike ... is that possible on a 700c bike with a 'sort of' horizontal TT? The other SO numbers look super low too.

Photo of the bike:
Attachment 375546

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UPDATE: I've checked with BD (who checked with Motobecane). SO for 43cm is 685cm. Must be a typo on the website. I know the question must have seemed ridiculous but I'm a bike noob. :D
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• 04-18-14, 09:39 PM
Nagrom_
That's just a bit over 2 feet. Yeah that's wrong.
• 04-18-14, 10:26 PM
JamesCraps
50cm is less than 2 feet...
• 04-18-14, 10:38 PM
TejanoTrackie
Quote:

Originally Posted by JamesCraps
50cm is less than 2 feet...

Awe, c'mon, he's a 'murican. We don't do that silly metric stuff over here.
• 04-18-14, 10:45 PM
Nagrom_
Meant to say under, but whatevs.

That was actually my first time ever in my life using the metric system.
• 04-18-14, 10:48 PM
TejanoTrackie
Quote:

Originally Posted by Nagrom_
That was actually my first time ever in my life using the metric system.

:lol:
• 04-18-14, 10:55 PM
JamesCraps
COME ON GUYS, 30 CM = 300MM = 1 Foot
• 04-18-14, 10:59 PM
TejanoTrackie
Yeah, but what is the valence of hydrogen ?
• 04-19-14, 08:35 AM
Phil_gretz
Quote:

Originally Posted by Nagrom_
Meant to say under, but whatevs.

That was actually my first time ever in my life using the metric system.

You never took a physics course?
• 04-19-14, 08:38 AM
Phil_gretz
Quote:

Originally Posted by JamesCraps
COME ON GUYS, 30 CM = 300MM = 1 Foot

Approximation, right? 12 x 25.4 = 304.8 6mm per foot.
• 04-19-14, 09:55 AM
Nagrom_
Quote:

Originally Posted by Phil_gretz
You never took a physics course?

Nope, Never.
Aside from 40 units of it cause it's my major.

But yeah, none beside those like 15 classes.
• 04-19-14, 10:03 AM
91MF
OP: I think what you should do is go back to LBS and buy a bike from the person who spent time sizing your wife to a bike and answering all your questions.
• 04-19-14, 10:20 AM
Scrodzilla
Quote:

Originally Posted by 91MF
OP: I think what you should do is go back to LBS and buy a bike from the person who spent time sizing your wife to a bike and answering all your questions.

+1

A few weeks ago we had a guy in the shop for about two hours asking questions about sizing, differences in components, etc. He wanted something with track geo and had similar proportions as me so I put my Bare Knuckle on a trainer, had him get on it and made a few adjustments. I even switched out the stem to something shorter because his arms weren't quite as long. He left knowing a lot more than when he came in. I even wrote it all down for him.

He came back the other day with a ****ing Kilo TT (that was too big for him), complaining that the "crankset was slipping".
• 04-19-14, 10:26 AM
91MF
Quote:

Originally Posted by Scrodzilla
+1

A few weeks ago we had a guy in the shop for about two hours asking questions about sizing, differences in components, etc. He wanted something with track geo and had similar proportions as me so I put my Bare Knuckle on a trainer, had him get on it and made a few adjustments. I even switched out the stem to something shorter because his arms weren't quite as long.

He came back the other day with a ****ing Kilo TT (that was too big for him), complaining that the "crankset was slipping".

gross.

somewhat similar, I work in the auto industry on a dealership level and there is nothing I hate more than when a customer comes in for a repair or concern and explains to me how it 'shouldn't take that long'

apparently a persons expertise is free now. because internet.
• 04-19-14, 10:48 AM
TejanoTrackie
That's the difference between retail and commercial businesses. As a professional engineer, only paying customers received any consulting advice from me.
• 04-19-14, 12:03 PM
JamesCraps
Quote:

Originally Posted by Phil_gretz
Approximation, right? 12 x 25.4 = 304.8 6mm per foot.

Obvi.