A tilt-decoupled steering device of a motorbike includes a handlebar bridge for receiving a motorbike handlebar, a fork bridge for receiving a fork leg, and at least one decoupling device connecting the handlebar bridge to the fork bridge. The handlebar bridge is mounted such that it can rotate about a steering axis and is secured about a tilt axis orthogonal to the steering axis, and the fork bridge is mounted such that it can rotate about the steering axis and about the tilt axis. The decoupling device transfers a steering movement and a steering torque in a steering direction about the steering axis between the handlebar bridge and the fork bridge, and compensates for a tilting movement in a tilting direction about the tilt axis of the fork bridge relative to the handlebar bridge.

A suspension unit has a piston assembly connected to an adjuster. The piston assembly has three or more concentric cylindrical bodies including: an outer tube; an inner tube, and a dampener rod. The dampener rod is inside and concentric to the inner tube. The outer tube is rigidly connected to the dampener rod. The inner tube is telescopically mounted to the outer tube. The inner tube is inside and concentric to the outer tube. The adjuster has an adjuster compression entry port. The axle clamp rebound port connects to an adjuster block rebound entry port. The adjuster block has a high-speed compression cavity formed on an end of the adjuster block.

A suspension unit has a piston assembly connected to an adjuster. The piston assembly has three or more concentric cylindrical bodies including: an outer tube; an inner tube, and a dampener rod. The dampener rod is inside and concentric to the inner tube. The outer tube is rigidly connected to the dampener rod. The inner tube is telescopically mounted to the outer tube. The inner tube is inside and concentric to the outer tube. The adjuster has an adjuster compression entry port. The axle clamp rebound port connects to an adjuster block rebound entry port. The adjuster block has a high-speed compression cavity formed on an end of the adjuster block.

Steering group of a motor vehicle including a front frame provided with a steering tube that rotatably houses a steering shaft or pin, which rotates about a steering axis, the front frame being provided with an upright integral with the steering tube, the front frame having a steering bracket (36), integral in rotation with the steering shaft where, the steering group includes elastic return means which elastically influence the steering shaft to position itself symmetrically with respect to the front frame, the elastic return means being interposed between the upright and the steering bracket so as to be compressed when the steering shaft rotates with respect to the central symmetrical position, wherein the elastic return means have a regressive trend elastic response.

Steering group of a motor vehicle including a front frame provided with a steering tube that rotatably houses a steering shaft or pin, which rotates about a steering axis, the front frame being provided with an upright integral with the steering tube, the front frame having a steering bracket (36), integral in rotation with the steering shaft where, the steering group includes elastic return means which elastically influence the steering shaft to position itself symmetrically with respect to the front frame, the elastic return means being interposed between the upright and the steering bracket so as to be compressed when the steering shaft rotates with respect to the central symmetrical position, wherein the elastic return means have a regressive trend elastic response.

A straddle type vehicle comprises a steering mechanism configured to steer a front wheel a steering damper device capable of variably generating a damping force working on a rotating action of the steering mechanism; and a control unit configured to control the damping force of the steering damper device to increase, when the front wheel of the straddle type vehicle in a wheelie state lands on a ground. The control unit controls the damping force to increase, after the front wheel lands on the ground and an oscillation occurs in the steering mechanism.

A straddle type vehicle comprises a steering mechanism configured to steer a front wheel a steering damper device capable of variably generating a damping force working on a rotating action of the steering mechanism; and a control unit configured to control the damping force of the steering damper device to increase, when the front wheel of the straddle type vehicle in a wheelie state lands on a ground. The control unit controls the damping force to increase, after the front wheel lands on the ground and an oscillation occurs in the steering mechanism.

Disclosed is a tilting structure of a mobility device, the tilting structure including: a base frame; a tilting bar coupled to the base frame to be able to rotate in two side directions on a rotational center fixed to the base frame; front wheels having a rotary shaft fixed to steering knuckles vertically extending; first connection links each having a first end rotatably coupled to the steering knuckle and a second end rotatably coupled to the base frame; second connection links each having a first end rotatably coupled to the steering knuckle at a position spaced over or under the coupling position of the first connection link and a second end rotatably coupled at a position spaced apart from the rotational center of the tilting bar; and shock-absorbing members each having a first end fixed to the base frame and a second end connected to the steering knuckle, the first connection link, or the second connection link.

Disclosed is a tilting structure of a mobility device, the tilting structure including: a base frame; a tilting bar coupled to the base frame to be able to rotate in two side directions on a rotational center fixed to the base frame; front wheels having a rotary shaft fixed to steering knuckles vertically extending; first connection links each having a first end rotatably coupled to the steering knuckle and a second end rotatably coupled to the base frame; second connection links each having a first end rotatably coupled to the steering knuckle at a position spaced over or under the coupling position of the first connection link and a second end rotatably coupled at a position spaced apart from the rotational center of the tilting bar; and shock-absorbing members each having a first end fixed to the base frame and a second end connected to the steering knuckle, the first connection link, or the second connection link.

Disclosed is a truck comprising a hanger having a first pivot support and a second pivot support and an axis of rotation passing through the first pivot support and the second pivot support, a base having a structure providing the first pivot support, a pivot arm attached to the base providing the second pivot support, a pivot bushing passing through an aperture of the base, a kingpin passing through the pivot bushing, the base, and the hanger, and a locknut arranged at an end of the kingpin. In at least one example embodiment the first and second pivot support structures prevent an axis of rotation of the hanger from moving as the locknut is moved along the kingpin.