A bicycle electronic equipment configured to be attached to a location of the bicycle includes a data processing system, a multicolour light source, and a switch. The switch includes a push-button and a two-state electric circuit. The data processing system is configured to: (a) make the light source emit cyclically repeating N coloured light emitting patterns, with N>=3, wherein coloured light emitting patterns immediately consecutive in the cyclical repetition differ in color and/or type of emitting pattern; (b) monitor the state of the switch during execution of step (a); and (c) perform a different action among N different actions according to which of the N coloured light emitting patterns the source is emitting upon the state switching of the switch.

A chain damper for use with a bicycle may include a base having an attachment region that is configured to be attached to a bicycle and a chain receiving portion extending from the base in a first direction. The chain receiving portion can include a chain damping surface that includes a resiliently deformable damping material and at least partially bounds a chain receiving aperture. The chain receiving aperture may extend in an axial direction and may be configured so that when the chain damper is attached to the bicycle the axial direction is substantially aligned with the primary chain direction and the chain damping surface is spaced apart from the chain travel path.

A chain damper for use with a bicycle may include a base having an attachment region that is configured to be attached to a bicycle and a chain receiving portion extending from the base in a first direction. The chain receiving portion can include a chain damping surface that includes a resiliently deformable damping material and at least partially bounds a chain receiving aperture. The chain receiving aperture may extend in an axial direction and may be configured so that when the chain damper is attached to the bicycle the axial direction is substantially aligned with the primary chain direction and the chain damping surface is spaced apart from the chain travel path.

The disclosure provides a chain guide assembly configured to be mounted on a linkage assembly of a bicycle derailleur. The chain guide assembly includes an inner plate, an outer plate, a first connecting bridge and a second connecting bridge. The outer plate is spaced apart from the inner plate. Two opposite sides of the first connecting bridge are respectively connected to the inner plate and the outer plate. Two opposite sides of the second connecting bridge are respectively connected to the inner plate and the outer plate. The inner plate, the outer plate, the first connecting bridge, and the second connecting bridge are made of a single piece. In addition, the disclosure also provides a bicycle derailleur having the chain guide assembly and a structural reinforcement sheet of the chain guide assembly.

A bracket apparatus for mounting a derailleur to a frame of a human-powered vehicle comprises a bracket body. The bracket body includes a frame attachment portion configured to be attached to the frame of the human-powered vehicle, a derailleur attachment portion to which the derailleur is to be attached, and a cable groove in which a cable is to be at least partly provided.

Disclosed herein is a transmission assembly for a wheeled vehicle. The assembly has a gear box superposed over an existing prior art bicycle. Based on the gear ratios of the gear box, the power input of a rider is increased in the same amount.

Disclosed herein is a transmission assembly for a wheeled vehicle. The assembly has a gear box superposed over an existing prior art bicycle. Based on the gear ratios of the gear box, the power input of a rider is increased in the same amount.

A compactable bicycle comprising a frame including a first and second frame portions wherein the frame is unfoldable to a use position for riding by the rider and is foldable to a storage position for storage. The bicycle includes: a rear brake, a rear brake lever, a rear break cable passes through a first cable guide, and a brake cable biasing member that is positioned to urge the rear brake cable back through the first cable guide to be between the first cable guide and the rear brake lever; front and rear wheel connectors to hold the front and rear wheels together; a crank, a front sprocket, a rear cassette, rear sprockets, a chain, and a derailleur; a chain guide that is positioned to engage the chain and to limit a lateral angle of the chain relative to the rear sprocket; or first and second frame element locking surfaces and apertures, and a plunger movable to a clamping position and to a release position.

A detector for a bicycle that includes a magnet, which generates a generated magnetic field, and a magnetic field sensor. The mutual position of the magnet and of the sensor is fixed, and the sensor is immersed in the generated magnetic field. A length of a path intended for a non-diamagnetic movable element is immersed in the generated magnetic field; if in said path length there is at least one actual portion of the movable element, the sensor detects the magnetic field perturbed by the actual portion of the movable element. Bicycle equipment and a bicycle derailleur are also described.

A detector for a bicycle that includes a magnet, which generates a generated magnetic field, and a magnetic field sensor. The mutual position of the magnet and of the sensor is fixed, and the sensor is immersed in the generated magnetic field. A length of a path intended for a non-diamagnetic movable element is immersed in the generated magnetic field; if in said path length there is at least one actual portion of the movable element, the sensor detects the magnetic field perturbed by the actual portion of the movable element. Bicycle equipment and a bicycle derailleur are also described.