Abstract: 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.

Abstract: In an aspect, a compactable bicycle is provided, comprising a base frame portion and a steering structure, at least one of which has a first and a second frame element. Each frame element has a locking surface, an end, and an aperture. The frame elements are positionable in a first position wherein the first and second apertures are aligned and the locking surfaces face away from one another, and in a second position in which the apertures are unaligned. A plunger has first and second plunger locking surfaces and is movable to a clamping position where it extends in both the first and second apertures and engages the first frame element locking surfaces, and a release position wherein the plunger retracts from the second aperture sufficiently to permit the first and second ends to be separated from one another.

Abstract: In an aspect, a compactable bicycle is provided, comprising a base frame portion and a steering structure, at least one of which has a first and a second frame element. Each frame element has a locking surface, an end, and an aperture. The frame elements are positionable in a first position wherein the first and second apertures are aligned and the locking surfaces face away from one another, and in a second position in which the apertures are unaligned. A plunger has first and second plunger locking surfaces and is movable to a clamping position where it extends in both the first and second apertures and engages the first frame element locking surfaces, and a release position wherein the plunger retracts from the second aperture sufficiently to permit the first and second ends to be separated from one another.

Abstract: In an aspect, a seat position and orientation adjustment structure for a bicycle is provided and includes a seat position adjustment structure and a seat orientation adjustment structure, which are both connected to a seat post of the bicycle at least indirectly. The seat position adjustment structure includes a seat position adjustment structure release member that is actuatable to unlock the seat position adjustment structure so as to permit adjustment of a position of the saddle without permitting adjustment of an orientation of the saddle. The seat orientation adjustment structure includes a seat orientation adjustment structure release member that is actuatable to unlock the seat orientation adjustment structure so as to permit adjustment of the orientation of the saddle.

Abstract: In an aspect, a compactable bicycle is provided, comprising a base frame portion and a steering structure. The base frame portion includes a seat tube and a head tube, a connecting tube connecting them and a rear frame portion that has a rear wheel mounted thereto. The steering structure includes a steering member rotatably mounted in the head tube, a handlebar, and a front wheel support having a front wheel connected thereto. The steering member includes first and second portions that are removably connectable together. The head tube includes first and second portions that hold the first and second steering member portions respectively. The second head tube portion is movable relative between a first position in which the first steering member portion is superjacent to the second steering member portion, and a second, stowage position.

Abstract: In an aspect, a compactable bicycle is provided, comprising a base frame portion and a steering structure. The base frame portion includes a seat tube and a head tube, a connecting tube connecting them and a rear frame portion that has a rear wheel mounted thereto. The steering structure includes a steering member rotatably mounted in the head tube, a handlebar, and a front wheel support having a front wheel connected thereto. The steering member includes first and second portions that are removably connectable together. The head tube includes first and second portions that hold the first and second steering member portions respectively. The second head tube portion is movable relative between a first position in which the first steering member portion is superjacent to the second steering member portion, and a second, stowage position.

Abstract: A self extending, collapsible bicycle, which is self extending upon the operation of a simple control, and having: collapsible frame portions moveable between collapsed and extended positions, self-powering devices connecting the frame portions which are operable to extend the frame portions, and a control connected to the self powering devices.