[DVBC] Bike Fit Riddle

[Chuck Yeager]

Bob's analysis should be correct, if the ground to top (bar & saddle) 
measurements are the same, the drops must also be the same.  It seems that 
some measurement must not be accurate.

Measuring from the nose of the saddle to the bar is not a good indicator of 
the overall reach, unless the same saddles are used, as the saddles may be 
of a different shape.

Chet

>
>Message: 2
>Date: Sat, 29 Apr 2006 20:41:18 -0400
>From: David <dcunicelli at rcn.com>
>Subject: [DVBC] Bike Fit Riddle?!
>To: bike club <dvbc-list at list.dvbc.org>
>Message-ID: <C0797FEE.2DD3%dcunicelli at rcn.com>
>Content-Type: text/plain; charset="US-ASCII"
>
>Hello all,
>     I've been trying like crazy to fit my bike in as close a manner as
>possible.  I've got all of my measurements and have laid the bikes out
>accordingly.  however one bike has defied logic and math to give me 
>trouble.
>
>here it is.  on both bike the following measurements are near exact-seat
>height, bar height as measured to ground, distance from nose of seat to 
>bar.
>but the drop from my seat to the top of my bars comes out quite different-2
>inches.  the 2 inch difference is telling on my back.  can anyone figure 
>out
>what i'm missing and how to fix it without radically altering any other
>measurements?
>
>any help would be greatly appreciated.
>
>david c
>
>
>
>-----------------------------
>
>-----Original Message-----
>From: dvbc-list-bounces at list.dvbc.org
>[mailto:dvbc-list-bounces at list.dvbc.org] On Behalf Of David
>Sent: Saturday, April 29, 2006 8:41 PM
>To: bike club
>Subject: [DVBC] Bike Fit Riddle?!
>
>Hello all,
>     I've been trying like crazy to fit my bike in as close a manner as
>possible.  I've got all of my measurements and have laid the bikes out
>accordingly.  however one bike has defied logic and math to give me
>trouble.
>
>here it is.  on both bike the following measurements are near exact-seat
>height, bar height as measured to ground, distance from nose of seat to
>bar.
>but the drop from my seat to the top of my bars comes out quite
>different-2
>inches.  the 2 inch difference is telling on my back.  can anyone figure
>out
>what i'm missing and how to fix it without radically altering any other
>measurements?
>
>any help would be greatly appreciated.
>
>david c
>
>_______________________________________________
>DVBC mailing list
>DVBC at list.dvbc.org
>http://list.dvbc.org/mailman/listinfo/dvbc-list
>
>
>
>
>
>
>------------------------------
>
>Message: 5
>Date: Sun, 30 Apr 2006 06:50:45 -0400
>From: Bob Curtiss <rouleur at bobcurtiss.net>
>Subject: Re: [DVBC] Bike Fit Riddle?!
>To: dvbc-list at dvbc.org
>Message-ID: <973CD311-8E39-43C4-AB56-23BA63D586D3 at bobcurtiss.net>
>Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
>
>Considering your dilemma strictly as a logical riddle, the following
>thoughts come to mind:
>
>If the bar height measured to ground matches; and if the seat height
>measured to ground matches; then the drop from the seat to the top of
>your bars must match also.
>
>How are you measuring your seat height?
>
>This is an assumption, but we all know what "assume" does... so I'll
>ask to be certain: do both bikes have the same frame size?
>
>Bob
>
>
>On Apr 29, 2006, at 8:41 PM, David wrote:
>
> > Hello all,
> >     I've been trying like crazy to fit my bike in as close a manner as
> > possible.  I've got all of my measurements and have laid the bikes out
> > accordingly.  however one bike has defied logic and math to give me
> > trouble.
> >
> > here it is.  on both bike the following measurements are near exact-
> > seat
> > height, bar height as measured to ground, distance from nose of
> > seat to bar.
> > but the drop from my seat to the top of my bars comes out quite
> > different-2
> > inches.  the 2 inch difference is telling on my back.  can anyone
> > figure out
> > what i'm missing and how to fix it without radically altering any
> > other
> > measurements?
> >
> > any help would be greatly appreciated.
> >
> > david c
> >
> > _______________________________________________
> > DVBC mailing list
> > DVBC at list.dvbc.org
> > http://list.dvbc.org/mailman/listinfo/dvbc-list
>
>
>
>
>------------------------------
>
>Message: 6
>Date: Sun, 30 Apr 2006 07:15:17 -0400
>From: <Drew.Knox at bentley.com>
>Subject: RE: [DVBC] Bike Fit Riddle?!
>To: <dvbc-list at dvbc.org>
>Message-ID:
>	<EE8C2D034A022444B87B1332B397810502E646F4 at extonpo1.bentley.com>
>Content-Type: text/plain; charset="iso-8859-1"
>
>This sounds like a job for the FitStik, if you want to find out that 2 inch 
>discrepancy.
>If you want to borrow mine, my number is (302) 475-1684.
>
>To fix your sizing problem, I'd start with a stem with more rise. Can you 
>flip this one?
>
>Drew
>
>________________________________
>
>From: dvbc-list-bounces at list.dvbc.org on behalf of David
>Sent: Sat 4/29/2006 8:41 PM
>To: bike club
>Subject: [DVBC] Bike Fit Riddle?!
>
>
>
>Hello all,
>     I've been trying like crazy to fit my bike in as close a manner as
>possible.  I've got all of my measurements and have laid the bikes out
>accordingly.  however one bike has defied logic and math to give me 
>trouble.
>
>here it is.  on both bike the following measurements are near exact-seat
>height, bar height as measured to ground, distance from nose of seat to 
>bar.
>but the drop from my seat to the top of my bars comes out quite different-2
>inches.  the 2 inch difference is telling on my back.  can anyone figure 
>out
>what i'm missing and how to fix it without radically altering any other
>measurements?
>
>any help would be greatly appreciated.
>
>david c
>

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