A bicycle has a front fork, within which the front wheel is mounted, attached to the head tube. Extending downwardly from each end of a lateral member are downwardly projecting forks, each comprising a primary portion, the respective primary portions extending downwardly and substantially parallel to each other. The longitudinal axes of both the main portion and a rider's lower leg are aligned. By aligning the wakes created by the forks and the lower leg a reduction in overall system drag is provided. Additionally or alternatively, the rear wheel may be provided between downwardly projecting stays, each comprising a primary portion, the respective primary portions extending downwardly and substantially parallel to each other. By aligning the downwardly projecting stays with the lower leg beneficial drag reduction is achieved.

A vehicle frame includes a frame body that includes a front wheel connecting member, a rear wheel connecting member, and a backbone member interconnecting the front and rear wheel connecting members and having a plurality of backbone sections interconnected to each other, and a coupling device that includes a plurality of first coupling members, each of which is mounted to a corresponding one of the backbone sections and is operable to switch between a mobile state and a stationary state. Each of the first coupling members is movable along the corresponding one of the backbone sections in the mobile state, and is immobilized relative to the corresponding one of the backbone sections in the stationary state.

A vehicle includes a vehicle body frame, a front wheel, a handle, a pair of left and right first front lights, and a pair of left and right second front lights. The front wheel is supported by the vehicle body frame. The handle is located farther to the rear than a rotation axis of the front wheel, and is operated by an occupant to turn the front wheel. The pair of left and right first front lights extend linearly in the left-right direction, and are located farther to the rear than a front end of the front wheel and farther to the front than the handle. The pair of left and right second front lights are provided separately from the first front lights.

A vehicle includes a vehicle body frame, a front wheel, a handle, a pair of left and right first front lights, and a pair of left and right second front lights. The front wheel is supported by the vehicle body frame. The handle is located farther to the rear than a rotation axis of the front wheel, and is operated by an occupant to turn the front wheel. The pair of left and right first front lights extend linearly in the left-right direction, and are located farther to the rear than a front end of the front wheel and farther to the front than the handle. The pair of left and right second front lights are provided separately from the first front lights.

Conveyance vehicles such as snow bikes and snowmobiles having an endless track system driven by a combustion engine are enhanced in performance with a torque assist system. The torque assist system includes an electric motor that is coupled to drive the track in parallel with the original internal combustion engine through either its own track drive, or through the drive system of the engine. The motor can be a spindle drive motor or hub motor. Torque assist is generated through a torque assist throttle input coupled to a motor controller. A battery temperature assist system diverts heated cooling fluid from the engine cooling system to heat the battery through its own heat exchanger. The controller is coupled to a processing device such as a smart phone that executes apps configured to provide parametric data to the controller and to receive parametric data from the controller through a user interface.

Conveyance vehicles such as snow bikes and snowmobiles having an endless track system driven by a combustion engine are enhanced in performance with a torque assist system. The torque assist system includes an electric motor that is coupled to drive the track in parallel with the original internal combustion engine through either its own track drive, or through the drive system of the engine. The motor can be a spindle drive motor or hub motor. Torque assist is generated through a torque assist throttle input coupled to a motor controller. A battery temperature assist system diverts heated cooling fluid from the engine cooling system to heat the battery through its own heat exchanger. The controller is coupled to a processing device such as a smart phone that executes apps configured to provide parametric data to the controller and to receive parametric data from the controller through a user interface.

A rear suspension for a three-wheeled reverse trike includes a front lever arm pivotably affixed to a frame pivotable about a front lever arm pivot axis. A slider is translatably attached to the front lever arm. A first pushrod is pivotably connected at a first end to the slider and pivotably connected at a second end to at least one of a front upper or lower control arms for the front wheels. A rear lever arm is pivotably affixed to the frame and pivotable about a rear lever arm pivot axis, the rear lever arm extending to a rear lever arm distal end. A rod pivotably connects the front and lever arms. A first pivotable end of the rear upper control arm is pivotably connected to the rear lever arm distal end, and a second pivotable end of the rear upper control arm is pivotably connected to a rear spindle.

Transportation vehicles, suspension systems and related methods are provided herein. For example, a three wheeled vehicle is provided that can include a frame having a first side and second side and a front end and a rear end and a steerable front wheel secured to the front end of the frame. The vehicle can also include a first trailing wheel arm having a first rear wheel secure thereto and a second trailing wheel arm having a second rear wheel secure thereto. The vehicle can also include a central suspension joint secured to the frame on which the first trailing wheel arm is rotatably secured and the second trailing wheel arm is rotatably secured on either side of the frame. Further, the vehicle can include a horizontal linkage having a first end and a second end and a midsection between the first and second ends. The horizontal linkage can be pivotably connected to a pintle on the frame at the midsection beneath the first and second trailing wheel arms with the horizontal linkage linked to an underside of the first trailing wheel arm between the first wheel and the central suspension joint proximal to the first end of the horizontal linkage and linked to an underside of the second trailing wheel arm between the second wheel and the central suspension joint proximal to the second end of the horizontal linkage.

A side cowl configured to cover a vehicle side portion of a saddle-ridden vehicle is provided. The side cowl includes a convex portion elongating in an upper-lower direction and protruding outward in a vehicle width direction with respect to a cowl outer surface. The convex portion is formed on the cowl outer surface at a downstream side of traveling wind that flows on the cowl outer surface.

A side cowl configured to cover a vehicle side portion of a saddle-ridden vehicle is provided. The side cowl includes a convex portion elongating in an upper-lower direction and protruding outward in a vehicle width direction with respect to a cowl outer surface. The convex portion is formed on the cowl outer surface at a downstream side of traveling wind that flows on the cowl outer surface.