A main body frame (100) for an electric motorcycle comprises a front fork support member (101) with a front fork through hole for loading a pivot stem of a front fork (200), the front fork through hole has a pivotal axis arranged in a central plane (P) of the main body frame; the main body frame further comprises a right and a left frame part (102, 105) arranged on opposite sides of the central plane of the main body frame, each having an elongated shape and being formed of an upper part (102a, 102b) and a lower part (102c, 102d), respectively at different sides of an elongation direction changing portion (102e), a first buffer member (120) attached, at opposite sides thereof, to the right and the left frame part, and crossing the central plane. wherein starting from the respective elongation direction changing portions thereof. the upper parts of the left and the right frame part extend inwardly towards the central plane so as to embrace the front fork support member, and are attached to opposite sides of the front fork support member, and a largest width (a7) of the main body frame in a width direction (Z) perpendicular to the central plane is 10 cm or more and 30 cm or less.

A tricycle having limited steering includes a front wheel mounted to a lower end of a wheel fork. A support tube is connected to a frame. A projection limits rotational movement of the front wheel.

A tricycle having limited steering includes a front wheel mounted to a lower end of a wheel fork. A support tube is connected to a frame. A projection limits rotational movement of the front wheel.

A vehicle including a body, a first and second swing arm assembly each pivotally mounted to the body, at least one wheel support arm pivotally mounted to the first swing arm assembly, an axle coupled to the wheel support arm, a wheel hub pivotally mounted to the axle, the wheel hub rotatably supporting at least one wheel in use, a support member pivotally mounted to the second swing arm assembly and either the wheel support arm or the first swing arm assembly. At least one steering arm pivotally connected to the support member and coupled to the wheel hub, wherein the steering arm, wheel support arm, and the support member are provided in a substantially triangular arrangement, a steering input pivotally mounted to the body and a steering coupling for connecting the steering arm to the steering input.

A vehicle including a body, a first and second swing arm assembly each pivotally mounted to the body, at least one wheel support arm pivotally mounted to the first swing arm assembly, an axle coupled to the wheel support arm, a wheel hub pivotally mounted to the axle, the wheel hub rotatably supporting at least one wheel in use, a support member pivotally mounted to the second swing arm assembly and either the wheel support arm or the first swing arm assembly. At least one steering arm pivotally connected to the support member and coupled to the wheel hub, wherein the steering arm, wheel support arm, and the support member are provided in a substantially triangular arrangement, a steering input pivotally mounted to the body and a steering coupling for connecting the steering arm to the steering input.

A vehicle height adjustment device includes a changer, a vehicle speed obtainer, a vehicle height controller, and a malfunction detector. The changer is configured to change a relative position of a body of a vehicle, which includes a plurality of wheels, relative to an axle of each of the plurality of wheels of the vehicle. The vehicle speed obtainer is configured to obtain a vehicle speed, which is a traveling speed of the vehicle. The vehicle height controller is configured to control a vehicle height, which is a height of the body, based on the vehicle speed obtained by the vehicle speed obtainer. The malfunction detector is configured to detect a failure of the vehicle speed obtainer to obtain an accurate value of the vehicle speed.

A vehicle height adjustment device includes a changer, a vehicle speed obtainer, a vehicle height controller, and a malfunction detector. The changer is configured to change a relative position of a body of a vehicle, which includes a plurality of wheels, relative to an axle of each of the plurality of wheels of the vehicle. The vehicle speed obtainer is configured to obtain a vehicle speed, which is a traveling speed of the vehicle. The vehicle height controller is configured to control a vehicle height, which is a height of the body, based on the vehicle speed obtained by the vehicle speed obtainer. The malfunction detector is configured to detect a failure of the vehicle speed obtainer to obtain an accurate value of the vehicle speed.

A fender for a cycling apparatus is provided. The fender may include a front portion, a rear portion, and an outer surface and an inner surface that each extend from the rear portion to the front portion. The fender may further include a mount portion disposed between the rear portion and the front portion. The mount portion may include a first engagement part configured to engage with at least one blade of a pair of spaced apart blades of a fork assembly, and a second engagement part. A first engagement part may be configured minimize side-to-side motion of the fender relative to a fork assembly and a second engagement part configured to minimize fore-and-aft motion of the fender relative to the fork assembly. A fender elongated body may have a generally convex outer surface and a generally concave inner surface, the inner surface defining a hollow cavity of the body.

A frame of a vehicle includes a front fork unit pivotably connected to a head tube of a vehicle body mechanism, a crank axle disposed on the front fork unit for two front-wheel cranks to be pivoted thereon. Two front wheels are pivotably disposed on the cranks, respectively. A front-wheel counteracting mechanism is pivotably connected between each of the cranks and the front fork unit to transmit an impact force to the cranks so as to cause opposite upward and downward movements of the front wheels to thereby keep the front wheels in contact with the ground and to render movement of the vehicle steady and safe.

A frame of a vehicle includes a front fork unit pivotably connected to a head tube of a vehicle body mechanism, a crank axle disposed on the front fork unit for two front-wheel cranks to be pivoted thereon. Two front wheels are pivotably disposed on the cranks, respectively. A front-wheel counteracting mechanism is pivotably connected between each of the cranks and the front fork unit to transmit an impact force to the cranks so as to cause opposite upward and downward movements of the front wheels to thereby keep the front wheels in contact with the ground and to render movement of the vehicle steady and safe.