Abstract: A rear derailleur is provided for a bicycle. The rear derailleur has an upper alignment assembly and a lower alignment assembly pivotally connected via a linkage assembly. The upper alignment assembly is pivotally attached to the bicycle along a b-knuckle mounting axis, and the upper alignment assembly includes a motor assembly to pivot the upper alignment assembly along an upper rotatable axis that is generally perpendicular to the b-knuckle mounting axis. The lower alignment assembly is pivotally attached to a pulley assembly along a p-knuckle mounting axis, and the lower alignment assembly includes a motor assembly to pivot the lower alignment assembly along a lower rotatable axis that is generally perpendicular to the p-knuckle mounting axis.

Abstract: The invention relates to a cable-actuated disc brake for a bicycle. The cable-actuated disc brake has a lever with dual, opposing piston assemblies that limit the movement of brake pads in relation to a brake disc of the bicycle. The lever includes symmetrical lever arms respectively engaged with symmetrical piston assemblies that are axially spaced, coaxially aligned and rotate about a pivot axis to selectively engage brake pads with a brake disc of the bicycle.

Abstract: The invention relates to a cable-actuated disc brake for a bicycle. The cable-actuated disc brake has a lever with dual, opposing piston assemblies that limit the movement of brake pads in relation to a brake disc of the bicycle. The lever includes symmetrical lever arms respectively engaged with symmetrical piston assemblies that are axially spaced, coaxially aligned and rotate about a pivot axis to selectively engage brake pads with a brake disc of the bicycle.

Abstract: The invention relates to a shift control device for an electronic derailleur of a racing bicycle. The control device includes a support body conventionally mounted to handlebars of the bicycle. The control device includes a plurality of electrical switches for selectively controlling a gear change of the bicycle. An upper set of switches operate an electronic motor of a derailleur for controlling a gear change towards a higher or a lower gear ratio, and are located toward an upper portion of the support body. A lower set of switches are located toward a lower portion of the support body, and also operate the electrical motor of the derailleur for controlling the gear change. The upper set of switches and the lower set of switches are each respectively positioned on the control device to minimize interference and/or mis-shifting during various riding positions by the cyclist.