A shock absorber includes a spring bearing that supports one end of the suspension spring which biases the shock absorber main body in an extension direction; a jack configured to change an axial position of the spring bearing; a ring-shaped adapter freely fitted to an outer periphery of the spring bearing; a restricting portion disposed between the spring bearing and the adapter, the restricting portion restricting a movement of the adapter in an axial direction with respect to the spring bearing; a rotation stop member mounted on the shock absorber main body to stop a rotation of the adapter; and a stroke sensor disposed between the adapter and the rotation stop member.

A bicycle comprises a main frame and a suspension assembly coupled to the main frame. The suspension assembly includes a dynamic crank support and a spring mechanism. The dynamic crank support is movable from an uncompressed position to a compressed position. The spring mechanism biases the dynamic crank support toward the uncompressed position. The suspension assembly further comprises a dynamic seat support coupled for movement with the dynamic crank support. For example, the dynamic seat support and the dynamic crank support can be rigidly coupled to each other and cooperatively form one bar of a four-bar linkage. An eccentric assembly is supported by the main frame and rotates about a first axis. The eccentric assembly pivotally supports the dynamic crank support for rotation about a second axis offset from the first axis. The spring mechanism preferably comprises a spring secured between the main frame and the eccentric assembly to rotationally bias the eccentric assembly.

A bicycle comprises a main frame and a suspension assembly coupled to the main frame. The suspension assembly includes a dynamic crank support and a spring mechanism. The dynamic crank support is movable from an uncompressed position to a compressed position. The spring mechanism biases the dynamic crank support toward the uncompressed position. The suspension assembly further comprises a dynamic seat support coupled for movement with the dynamic crank support. For example, the dynamic seat support and the dynamic crank support can be rigidly coupled to each other and cooperatively form one bar of a four-bar linkage. An eccentric assembly is supported by the main frame and rotates about a first axis. The eccentric assembly pivotally supports the dynamic crank support for rotation about a second axis offset from the first axis. The spring mechanism preferably comprises a spring secured between the main frame and the eccentric assembly to rotationally bias the eccentric assembly.

A self-balancing electric vehicle may include a board having a frame, and a suspension system including at least one four-bar linkage coupling opposing end portions of a hub motor axle to the first end portion of the frame. The four-bar linkage(s) may have a first fixed link connected to the axle, a second fixed link comprising the frame, and two pivotable links joining the first fixed link to the second fixed link, such that the board is configured to be movable up and down relative to the axle. A shock absorber may be coupled to the four-bar linkage(s) and to the first end portion of the frame, such that the shock absorber is configured to damp up and down movement of the board relative to the axle.

A self-balancing electric vehicle may include a board having a frame, and a suspension system including at least one four-bar linkage coupling opposing end portions of a hub motor axle to the first end portion of the frame. The four-bar linkage(s) may have a first fixed link connected to the axle, a second fixed link comprising the frame, and two pivotable links joining the first fixed link to the second fixed link, such that the board is configured to be movable up and down relative to the axle. A shock absorber may be coupled to the four-bar linkage(s) and to the first end portion of the frame, such that the shock absorber is configured to damp up and down movement of the board relative to the axle.

A rear wheel suspension adjusting arrangement for use in a vehicle includes a configuration adjusting arrangement and an activating arrangement. The vehicle includes a frame having a front and a back, a suspended rear drive wheel that supports the frame, and a suspension system for connecting the rear drive wheel to the frame. The configuration adjusting arrangement is capable of changing the positioning of the suspension system relative to the frame such that the suspension system may be moved into an uphill configuration when the vehicle is traveling uphill and such that the suspension system may be moved into a downhill configuration when the vehicle is traveling downhill. The activating arrangement activates the changing of the configuration adjusting arrangement to cause the configuration adjusting arrangement to change the positioning of the suspension system relative to the frame while the vehicle is being used.

A detection device includes sensor device configured to obtain environmental information about surroundings of a small vehicle, an output unit outputting the environmental information to a control device of the small vehicle, and a mount configured to be attached to a rider of the small vehicle so as to hold the sensor device and the output device.

A detection device includes sensor device configured to obtain environmental information about surroundings of a small vehicle, an output unit outputting the environmental information to a control device of the small vehicle, and a mount configured to be attached to a rider of the small vehicle so as to hold the sensor device and the output device.

A self-balancing electric vehicle may include a board having a frame, and a suspension system including at least one four-bar linkage coupling opposing end portions of a hub motor axle to the first end portion of the frame. The four-bar linkage(s) may have a first fixed link connected to the axle, a second fixed link comprising the frame, and two pivotable links joining the first fixed link to the second fixed link, such that the board is configured to be movable up and down relative to the axle. A shock absorber may be coupled to the four-bar linkage(s) and to the first end portion of the frame, such that the shock absorber is configured to damp up and down movement of the board relative to the axle.

A self-balancing electric vehicle may include a board having a frame, and a suspension system including at least one four-bar linkage coupling opposing end portions of a hub motor axle to the first end portion of the frame. The four-bar linkage(s) may have a first fixed link connected to the axle, a second fixed link comprising the frame, and two pivotable links joining the first fixed link to the second fixed link, such that the board is configured to be movable up and down relative to the axle. A shock absorber may be coupled to the four-bar linkage(s) and to the first end portion of the frame, such that the shock absorber is configured to damp up and down movement of the board relative to the axle.