Abstract: A bicycle drive system includes a front gear face, a rear gear face, a front guide assembly, a rear guide assembly, and a drive shaft coupled to a rear-suspension frame via a rear hub and a crank spindle. The bicycle drive system operates independently of the frame. Shifting from one gear to another is controlled by a shift controller. Each shift of the shift controller shifts both the front and rear guide assemblies at the same time. The shift controller is preferably coupled to the front and rear guide assemblies via a cable system.

Abstract: Embodiments of the present invention provide devices, systems and methods to test optoelectronic modules. In one embodiment, the testing device can include a printed circuit board (PCB) and a first portion attached to the PCB. A second portion can be attached to the first portion. The second portion can include at least one testing device that can be used to test an optoelectronic module disposed between the first portion and the second portion. The optoelectronic module can be electrically and mechanically connected to at least one of the PCB and the first portion.