Cracked 14A cog

Broken on September 14, 2009, while riding at Hains Point. This is part of a Campagnolo Chorus 10-speed cassette, 11-25 range. The 13A cog broke during the 2008 Giro di Coppi race, and this cog must have been similarly flawed. In all my years of cycling, I'd never seen a cog crack and begin to pull off of a cassette.

Done