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Old 08-05-2004, 10:19 PM   #7 (permalink)
John Dacey
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Re: Track cranks/bb question

On 5 Aug 2004 13:59:58 -0700, g.steve@eudoramail.com (supabonbon)
wrote:

>What is the major difference between track cranks and regular road
>cranks when it comes to chainline issues? I know the spindle length of
>the bb is typically shorter, and it seems like track cranks typically
>have a larger chainwheel diameter. And maybe track cranks are a little
>more built-up.


Contemporary track cranks generally conform to the common chainline
standard of 42.5 mm., plus or minus .5 mm. It's a specification shared
with premium track hub models for compatibility.

As part of our online track catalogue, there's a reference page that
addresses many track-specific issues, including chainline, which you
may find helpful. The link direct to the page is
http://www.businesscycles.com/tr-refspec.htm


-------------------------------
John Dacey
Business Cycles, Miami, Florida
http://www.businesscycles.com
Since 1983
Our catalog of track equipment: online since 1996
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