Abstract: A bicycle chain replacement part holder. In an embodiment, the part holder is a generally parallelepiped shaped resilient urethane rubber block with slight notches at the corner suitable for releasably securing the part holder in an interference snap-in fit pattern with the interior perimeter walls of a part holder aperture in a chain linking tool. Alternately, the part holder may be provided for separate use in a stand alone fashion. In an embodiment, a thru hole aperture is provided in the parts holder for use with a securing device, such as a key chain, so that the parts holder can be reliably secured to a known location, especially in the event that the parts holder is not secured to and within a chain linking tool.