Abstract: In a bicycle frame comprising a plurality of tubes having hollow ends and a plurality of fittings having pins fitting in the hollow ends, each pin extends along an axis and has an outer surface portion of axially constant section centered on the axis and engaged in the respective tube end, an inner surface portion centered on the axis and flaring axially inward away from the inner end of the respective outer surface portion, and a shoulder surface projecting generally perpendicular from the inner end of the respective inner surface portion and facing outward. Each tube end has an end surface abutting flatly inward on the respective shoulder surface and an inner surface having an inner surface portion fitted tightly over and complementary to the inner surface portion of the respective pin and an outer surface portion radially slightly spaced from and facing the outer surface portion of the respective pin.

Abstract: A bicycle frame which can be easily assembled from frame elements. The frame elements are tubular and have hollow fittings having male assembly bearings with a decreasing taper section up to their ends.

Abstract: A handlebar brake for a motorcycle, motor bicycle or the like comprises a support for the brake lever which is biased into its rest position by a restoring spring. The restoring spring handles a hollow contactor body in recess of the support and this body contains a rocker which has a formation reaching through an opening in the body and spring biased for contact with the lever. When the lever is actuated, a movable contact on the rocker engages between stationary contact blades in the body to complete an electric circuit to the stop light.

Abstract: An actuator for mounting on a part such as a cycle handgrip and for operating a cable having a core and a sheath has a one-piece lever, a one-piece support carrying the lever, and a clamp for securing the support to the part. The lever is unitarily formed with an elongated handle, with a laterally projecting foot having a pair of opposite outwardly facing sides, with respective coaxially aligned cylindrical pivot pins projecting oppositely outwardly from the sides, and with a holding formation for the end of the cable core.

Abstract: The invention provides a center-pull calliper brake for a bicycle or the like in which the callipers are hinged about respective axes which are inclined with respect to the median plane of the wheel rim in such a way as to diverge when considered along the direction of movement of the wheel during forward travel of the vehicle. This gives a self-applying braking effect which considerably increases the safety of the bicycle.

Abstract: A caliper brake for cycles and the like in which a bridge piece secures the caliper brake to the cycle frame and a pair of arms are pivotally mounted and carry brake jaws which press against the cycle wheel when a cable is drawn. According to the invention at least one of the arms and the support are connected by a threaded member and are respectively tapped so as to receive the threaded member as a screw-and-nut connection. A clearance is provided axially to permit the arm to move slightly as it is rotated about the screw member on the latter.