Re: [CR]Stronglight Cranks/ retaping pedal thread


From: "Jon Schaer" <jschaer@columbus.rr.com>
To: "Jay Sexton" <jvs@sonic.net>, <classicrendezvous@bikelist.org>
References: <CATFOODy8VBDUfdfdhN000005ef@catfood.nt.phred.org> <3E6B7DC4.7040205@sonic.net>
Subject: Re: [CR]Stronglight Cranks/ retaping pedal thread
Date: Sun, 9 Mar 2003 18:17:50 -0500


----- Original Message ----- From: "Jay Sexton" <jvs@sonic.net>
>
> I want to re-tap French threaded Mod 93 cranks to English....... It was suggested to run the tap from the backside of the crankarm. Why would
> this be?
>

I think your results will be best if you pre-drill or ream the hole first to a proper base ID for the 9/16" x 20tpi English tap, although it shouldn't take much. I believe taping from the backside of the crankarm will leave a cleaner thread start from the pedal side once your finished.

Jon Schaer
Columbus, OH