A vehicle suspension system is disclosed. The vehicle suspension system can include a first spring having a first spring characteristic, a second spring having a second spring characteristic, and an actuator coupled to the first and second springs such that actuation of the actuator causes a change in the first and second spring characteristics. The change in the second spring characteristic can be inversely proportional to the change in the first spring characteristic to adjust vehicle handling.

A control assembly for an in-line bicycle shock absorber can include a control member rotatably mounted to a housing of the shock absorber, the control member having an interior bore, and with one end of the bore being closed and another end of the bore being open. The control assembly also includes a piston slidably mounted within the interior bore of the control member. The control member is rotated to adjust a first characteristic of the shock absorber and the piston is displaced within the interior bore to adjust a second characteristic of the shock absorber.

A stabilizer bar for a chassis of a motor vehicle comprises a torsion spring portion and two arms bent away from the torsion spring portion; wherein the arms each comprise a formed end portion with a through-opening and a tubular portion, wherein the torsion spring portion comprises a hardened structure with a strength of at least 1000 MPa; and wherein the formed end portions comprise a hardened structure with a strength of at least 800 MPa. A process of producing a corresponding stabilizer is further disclosed.

A stabilizer bar for a chassis of a motor vehicle comprises a torsion spring portion and two arms bent away from the torsion spring portion; wherein the arms each comprise a formed end portion with a through-opening and a tubular portion, wherein the torsion spring portion comprises a hardened structure with a strength of at least 1000 MPa; and wherein the formed end portions comprise a hardened structure with a strength of at least 800 MPa. A process of producing a corresponding stabilizer is further disclosed.

A torsion device comprising: a first part comprising a first resilient torsion member including: a first support end; a first free end spaced from the first support end; and a first engagement region; a second part comprising a second resilient torsion member including: a second support end; a second free end spaced from the second support end; and a second engagement region; wherein the second part is rotatable relative to the first part about an axis of rotation (A) between a first angular position and a second angular position, and the first and second torsion members are configured to urge the first and second engagement regions together to cause flexure of at least one of the first and second resilient torsion members as the second part rotates relative to the first part from the first angular position to the second angular position.

A torsion device comprising: a first part comprising a first resilient torsion member including: a first support end; a first free end spaced from the first support end; and a first engagement region; a second part comprising a second resilient torsion member including: a second support end; a second free end spaced from the second support end; and a second engagement region; wherein the second part is rotatable relative to the first part about an axis of rotation (A) between a first angular position and a second angular position, and the first and second torsion members are configured to urge the first and second engagement regions together to cause flexure of at least one of the first and second resilient torsion members as the second part rotates relative to the first part from the first angular position to the second angular position.

The invention relates to a subframe for a motor vehicle, comprising two front node elements (1) for connecting to a vehicle body, which node elements are spaced from each other in a vehicle transverse direction (y) and are connected to each other by means of a front subframe cross member (3), and comprising at least one functional part (28), in particular a rotary actuator, which extends adjacently to the subframe cross member (3) in a vehicle transverse direction (y), by means of which functional part a torsion can be applied to torsion springs that act on the vehicle wheel suspension. According to the invention, the subframe cross member (3) has an opening, which provides an additional installation space, in which the functional part (28) at least partially protrudes.

A trailer for towing by a power vehicle is provided and generally includes a frame and a tandem wheel assembly. The frame forms an undercarriage chassis and the tandem wheel assembly positioned under the undercarriage chassis. The tandem wheel assembly includes a rear wheel assembly and a front wheel assembly. An extension assembly is provided and moves the front wheel assembly between trailing position and a self-propelled position where the rear wheel assembly and the front wheel assembly are positioned to equally support the undercarriage chassis.

A trailer for towing by a power vehicle is provided and generally includes a frame and a tandem wheel assembly. The frame forms an undercarriage chassis and the tandem wheel assembly positioned under the undercarriage chassis. The tandem wheel assembly includes a rear wheel assembly and a front wheel assembly. An extension assembly is provided and moves the front wheel assembly between trailing position and a self-propelled position where the rear wheel assembly and the front wheel assembly are positioned to equally support the undercarriage chassis.

Disclosed herein is an axle cartridge member for receiving a pair of torsion stub axles. The axle cartridge member includes a pair of laterally opposed bases, with each base defining a cavity therein for receiving an elongated stub housing of the torsion stub axles. The axle cartridge member also includes a pair of axle mounts that each includes a lateral opening extending into the cavity defined in the respective base, and an arch including a crossbar extending at a height above the bases wherein the arch further includes a portion that extends upward from each of the bases at an angle and meets the crossbar that extends generally horizontally between the portions of the arch.