[CR] Enlarging 22mm to 23.15mm crank threads?

(Example: Framebuilders:Bernard Carré)

To: classicrendezvous@bikelist.org
Date: Mon, 28 Jun 2010 20:19:02 -0700 (PDT)
From: donald gillies <gillies@ece.ubc.ca>
Subject: [CR] Enlarging 22mm to 23.15mm crank threads?


I have some un-mated stronglight 93 right arms (165 and 170mm), and I'd like to buy some generic left crank arms, but i'd still like to have a matching crank set. Is it difficult, or does anyone offer a service to increase the threading from 22mm to 23.15mm so that my 2 crank arms can be matched, i can polish and maybe reshape the left arm, put stronglight caps into both arms, etc., and sort of have a pseudo-matching crank set ?? I'm just curious, thanks.

- Don Gillies
San Diego, CA, USA