| |
Main
Date: 10 Oct 2007 19:22:35
From: Jim Martin
Subject: Non-standard Narrow bottom brackets?
|
Hello All:
We have a project in my lab in which we would like to use a really
narrow bottom bracket. I have been told that some recumbents might use
narrow bottom brackets but a lot of Google searching did not turn up
anything for me. I have a vague recollection of seeing narrow bottom
brackets at Interbike years ago. Maybe Phil Wood?
Any one have suggestions where I might look?
Thanks,
Jim
|
|
| |
Date: 11 Oct 2007 05:48:48
From: Qui si parla Campagnolo-www.vecchios.com
Subject: Re: Non-standard Narrow bottom brackets?
|
On Oct 10, 8:33 pm, carlfo...@comcast.net wrote:
> On Wed, 10 Oct 2007 19:22:35 -0600, Jim Martin <jmar...@xmission.com>
> wrote:
>
> >Hello All:
>
> >We have a project in my lab in which we would like to use a really
> >narrow bottom bracket. I have been told that some recumbents might use
> >narrow bottom brackets but a lot of Google searching did not turn up
> >anything for me. I have a vague recollection of seeing narrow bottom
> >brackets at Interbike years ago. Maybe Phil Wood?
>
> >Any one have suggestions where I might look?
>
> >Thanks,
>
> >Jim
>
> Dear Jim,
>
> Sheldon has a list of some bottom bracket dimensions:
>
> http://www.sheldonbrown.com/bbsize.html
>
> The narrowest seem to be Shimano Dura-Ace 7410 double and Sugino RD
> 5-bolt single, both at 103 mm.
>
> If you figure out how narrow you need, other posters can probably
> help.
>
> Cheers,
>
> Carl Fogel
Actually, Campagnolo Record/Chorus are 102mm...
|
| |
Date: 11 Oct 2007 10:46:05
From: James Thomson
Subject: Re: Non-standard Narrow bottom brackets?
|
"Jim Martin" <jmartin@xmission.com > a écrit:
> We have a project in my lab in which we would like to use a really narrow
> bottom bracket. I have been told that some recumbents might use narrow
> bottom brackets but a lot of Google searching did not turn up anything for
> me. I have a vague recollection of seeing narrow bottom brackets at
> Interbike years ago. Maybe Phil Wood?
I surfed to this page a day or two ago:
http://www.recumbents.com/WISIL/qfactor/qfactor.htm
James Thomson
|
| |
Date: 10 Oct 2007 21:32:12
From: Mark
Subject: Re: Non-standard Narrow bottom brackets?
|
Jim Martin wrote:
> Hello All:
>
> We have a project in my lab in which we would like to use a really
> narrow bottom bracket. I have been told that some recumbents might use
> narrow bottom brackets but a lot of Google searching did not turn up
> anything for me. I have a vague recollection of seeing narrow bottom
> brackets at Interbike years ago. Maybe Phil Wood?
>
> Any one have suggestions where I might look?
I have it on the authority of a movie recently released to DVD that
washing machines are good sources for narrow BB bearings. Get out your
hacksaw and have at it!
Mark J.
|
| |
Date: 10 Oct 2007 22:02:27
From: A Muzi
Subject: Re: Non-standard Narrow bottom brackets?
|
Jim Martin wrote:
> We have a project in my lab in which we would like to use a really
> narrow bottom bracket. I have been told that some recumbents might use
> narrow bottom brackets but a lot of Google searching did not turn up
> anything for me. I have a vague recollection of seeing narrow bottom
> brackets at Interbike years ago. Maybe Phil Wood?
Phil can make up just about anything.
Narrow as in BSC thread but smaller than 68mm wide?
Or narrow as in a square taper spindle shorter than 102mm overall?
--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971
|
| |
Date: 10 Oct 2007 20:33:32
From:
Subject: Re: Non-standard Narrow bottom brackets?
|
On Wed, 10 Oct 2007 19:22:35 -0600, Jim Martin <jmartin@xmission.com >
wrote:
>Hello All:
>
>We have a project in my lab in which we would like to use a really
>narrow bottom bracket. I have been told that some recumbents might use
>narrow bottom brackets but a lot of Google searching did not turn up
>anything for me. I have a vague recollection of seeing narrow bottom
>brackets at Interbike years ago. Maybe Phil Wood?
>
>Any one have suggestions where I might look?
>
>Thanks,
>
>Jim
Dear Jim,
Sheldon has a list of some bottom bracket dimensions:
http://www.sheldonbrown.com/bbsize.html
The narrowest seem to be Shimano Dura-Ace 7410 double and Sugino RD
5-bolt single, both at 103 mm.
If you figure out how narrow you need, other posters can probably
help.
Cheers,
Carl Fogel
|
| | |
Date: 10 Oct 2007 20:55:38
From: Jim Martin
Subject: Re: Non-standard Narrow bottom brackets?
|
carlfogel@comcast.net wrote:
> Sheldon has a list of some bottom bracket dimensions:
>
> http://www.sheldonbrown.com/bbsize.html
>
> The narrowest seem to be Shimano Dura-Ace 7410 double and Sugino RD
> 5-bolt single, both at 103 mm.
>
> If you figure out how narrow you need, other posters can probably
> help.
Thanks Carl. I was thinking REALLY narrow. Like half of normal. Anyone
seen anything like that? Maybe I should contact the HPV type guys?
Cheers,
Jim
|
|
