The invention comprises a truck and riding devices with a lean steering spatial mechanism comprised of rigid bodies and a single compliant body connected by joints forming a closed kinematic chain wherein the compliant body provides compression, tension, and torsional return spring forces for multi-axial functionality within the constraints of the lean steering spatial mechanism, allowing for the combined functionality of deep deck lean, improved lean steering control over a wider range of speed, improved speed stability, and full load bearing suspension. The invention has additional degrees of freedom and additional primary motions of floating and suspension.

A tilting, preferably three-wheeled, vehicle is disclosed that has a tilting mechanism and a universal steering linkage that allows the vehicle to have leaning and steering characteristics substantially similar to those offered by an in-line two-wheeled vehicle, but that does not require complex linkages and/or control systems to operate effectively. A tilting linkage is operably secured to a frame to allow a pair of spaced apart wheels to remain substantially aligned with the plane of the vehicle throughout its range of movement while still providing an increasing camber between the wheels as tiling of the vehicle increases. A tilting lock system may be provide to limit tilting of the vehicle upon predetermined criteria.

A tilting vehicle includes a frame, a right wheel and a left wheel set alongside one another, a suspension system that operatively connects the right and left wheels to the frame, and an electronic control system operatively connected to the suspension system; the suspension system includes a first extensible assembly between the right wheel and the frame, and being designed to exert a thrust action between the right wheel and the frame to control tilting of the vehicle; the suspension system including a second extensible assembly between the left wheel and the frame, and being designed to exert a thrust action between the left wheel and the frame, to control tilting of the vehicle; the vehicle includes an actuation interface having an exposed surface operatively connected to the control system; the actuation interface is designed to be operated by a driver to control tilting of the vehicle upon command.

A front fork assembly includes a shock absorbing assembly and an anti-revolving guiding member arranged in a front-rear direction and extending in an up-down direction to interconnect a suspending bracket and the connecting bridge, left and right connecting levers interconnecting a swing arm assembly and a crank pivoting shaft, and left and right cranks for mounting with two front wheels of a tilting vehicle. Occurrence of speed wobble of the front fork assembly is prevented to render driving of electric bicycles, scooters and motorcycles equipped with the front fork assembly better and safer, to shorten the braking distance of vehicles, to prevent spinning of vehicles during braking, to prevent side slip during turning, to provide more comfortable feeling of shock absorption of vehicles, and to render the driving stable when passing over obstacles.

A vehicle includes a body frame including an upper frame, a front frame, and a rear frame. On a front-wheel side, a first end of a shock absorber of a suspension and a stabilizer are supported by the body frame via a bracket adjacent to a connection between the upper frame and the front frame. On a rear-wheel side, a first end of a shock absorber of a suspension and a stabilizer are supported by the body frame via a bracket adjacent to a connection between the upper frame and the rear frame.

The present disclosure relates to a front chassis system of a tilting vehicle, and a front chassis system of a tilting vehicle. The system includes at least: a front swing arm-LH connected to and provided at a vehicle body and a front steering wheel-LH, and a front swing arm-RH connected to and provided at the vehicle body and a front steering wheel-RH; a front shock absorber-LH connected to and provided at the front swing arm-LH, and a front shock absorber-RH connected to and provided at the front swing arm-RH; a front tilt bar rotatably connected to and provided at the vehicle body, and connected to and provided at the front shock absorber-LH and the front shock absorber-RH; at least one front elastic roller provided at the vehicle body; and a steering device linked to and provided at a steering wheel part assembled on the vehicle body.

An all-terrain vehicle including a frame having longitudinally-spaced ends defining a first longitudinal axis, and an engine supported by the frame. The engine includes a crankshaft defining a second longitudinal axis substantially parallel to the first longitudinal axis.

A pedal powered vehicle characterized by three or four-wheels, and comprising a human powered apparatus for controlling wheel and body lean is disclosed. The tilt control apparatus produces a parallel tilting of the main frame and hub-centered wheels; which, when combined with vehicle speed, indirectly governs a free to caster steering arrangement. Since the rider controls vehicle tilt at all times; and, because free to caster steering operates from full stop to full speed, there is no need to employ the technique of steer/counter steer, or the need for an on/off lean-lock device at slower/higher speeds. Operationally, the tilt control apparatus functions like a variable lean-lock device which ensures stability throughout the range of tilt and enables the operator to maximize the roll over resistance, making the vehicle's high profile (height of a compact sedan) and narrow track (functional fit with cycle lanes) suitable for urban commuting.

A vehicle includes a left front wheel, a right front wheel, and a rear wheel that tilt together with a body frame, wherein, while a large capacity of a fuel tank is ensured, a variation in the center-of-gravity position of the vehicle while driving is small. When viewed in a side view with the body frame in an upright position, the fuel tank is disposed between a first center and a second center, the first center being located between a third center and right and left front wheel ground contacting portions, the second center being located between the third center and a rear wheel ground contacting portion, the third center being located between the right and the left front wheel ground contacting portions and the rear wheel ground contacting portion.

Please replace the abstract with the following amended abstract: A knuckle assembly for use with a wheel suspension system of a vehicle having a vehicle longitudinal axis, a frame extending therealong, the suspension system comprising upper and lower suspension arms, each having a frame engaging end at which the arm is configured to be pivotally connected to the frame about a proximal suspension axis, and a knuckle engaging end at which the arm is configured to be pivotally connected to the knuckle assembly about a distal suspension axis parallel to the proximal suspension axis.