[CR]filing cranks


Example: Events:Cirque du Cyclisme:2002

To: chriseye@comcast.net
Date: Sat, 07 Feb 2004 19:39:04 -0800
From: "brian blum" <bbspokes@lycos.com>
Organization: Lycos Mail (http://www.mail.lycos.com:80)
cc: classicrendezvous@bikelist.org
Subject: [CR]filing cranks

Filing a nice radius and eliminating the thin web will prevent cracking in this area. I believe Campagnolo put that web there as a wear indicator, the early cranks did not have this "feature". The sudden catastrophic failures usually occur at the pedal hole which can lead to a crash. Campagnolo did make aerospace components and I believe they knew what they were doing. Brian Blum former stress analyst on B-2 and F-18