20101127-bicyclePartsFailures139.jpg
Broken chain link plate. One can see that this plate cracked in the middle (rusty metal), then spread to the outsides (shiny metal) and finally failed.
Title
Broken chain link plate.
Exposure
400, ¹⁄₁₀₅ sec at f/2.8
Camera and Lens
FUJIFILM FinePix F10
Datetime
Image captured on November 27, 2010 at 19:09:01.