A hold open rod has a control sleeve, an outer cylinder, lock balls, a lock sleeve, a piston, a piston head, a release spring, and a lock spring. The control sleeve has first and second cavity sections, an inner radial surface, a CS channel, and a pin. The outer cylinder has an OC inner cavity, OC inner and outer radial surfaces, an OC axial end wall, lock ball apertures, and a pin guide slot. The lock balls are configured to pass through the lock ball apertures. The piston has first and second sections. The piston head has an outer radial surface, a channel, and a piston bore. The piston bore is configured to receive the first section of the piston. The release spring biases the control sleeve toward a first axial end. The lock spring biases the lock sleeve toward a second axial end.

A method and apparatus for a suspension comprising a spring having a threaded member at a first end for providing axial movement to the spring as the spring is rotated and the threaded member moves relative to a second component. In one embodiment, the system includes a damper for metering fluid through a piston and a rotatable spring member coaxially disposed around the damper and rotatable relative to the damper.

A method and apparatus for a suspension comprising a spring having a threaded member at a first end for providing axial movement to the spring as the spring is rotated and the threaded member moves relative to a second component. In one embodiment, the system includes a damper for metering fluid through a piston and a rotatable spring member coaxially disposed around the damper and rotatable relative to the damper.

A bicycle can include a suspension system with a shock absorber. The shock absorber can have a sag position which can be adjustable. Sag refers to the amount of movement experienced by the suspension under a static load, such as that of the weight of a rider. Methods and systems to set sag can include at least one valve in fluid communication with a gas chamber of the shock absorber. In some embodiments, the at least one valve can be used to automatically set the sag position based on an individual's weight and riding position.

A bicycle can include a suspension system with a shock absorber. The shock absorber can have a sag position which can be adjustable. Sag refers to the amount of movement experienced by the suspension under a static load, such as that of the weight of a rider. Methods and systems to set sag can include at least one valve in fluid communication with a gas chamber of the shock absorber. In some embodiments, the at least one valve can be used to automatically set the sag position based on an individual's weight and riding position.

A shock absorber spring retention structure is provided for a remote control car. A spring is arranged between a shock absorption cylinder and a piston rod that are axially movable relative to each other to produce an effect of damping. The spring has a top supported on an adjustment ring that is threadingly screwed to an outer circumference of the shock absorption cylinder and a bottom having a wire rotatably coupled to a clip and held in position by a mounting seat to be coupled to a connection seat mounted to an end of the piston rod. The connection seat includes an engagement section with which the clip is engageable for locking. Thus, in the assembly of the shock absorber, the clip securely retains and couples the spring, the mounting seat, and the connection seat together to prevent the spring from detaching during the operation of the shock absorber.

Single adjustable air suspension shocks with built-in damper device and coil assist, apparatus, system and method for motor vehicles, such as automobiles, vans, trucks, off the road vehicles, and the like. Air suspension systems, devices, apparatus, and methods for allowing motor vehicle drivers to increase and decrease compressed air supplies in air suspension devices. Deflating interior air springs/airbags (bladders) inside the devices allows for springs and pistons on shock absorbers in the devices to expand outward separating lower front and rear frame portions which effectively lowers the motor vehicle to the ground surface and for the driver to have a firmer ride. Inflating the air springs/airbags (bladders) allows for the springs and the pistons on the shock absorbers in the devices to retract into the devices so that the devices have a more shock absorbing effect giving the driver and passenger(s) a smoother ride, which also raises the motor vehicles above the ground surface.

A piston includes: a disk-shaped piston body; an annular valve seat axially projecting from a first end of the piston body; and at least one port axially extending from the area inside the annular valve seat in the first end of the piston body to a second end of the piston body, and the port has a cross-sectional shape of a rounded rectangular having two arc-shaped opposite sides on one circle, the cross-sectional shape being the same all the way along the piston body.

The assembly includes a one group (40A to 40C) of hydraulic shock absorbers (42), each shock absorber (42) comprising a hydraulic jack comprising a cylinder designed to be supported by the first element (14), and a shock-absorbing member partially received in the cylinder. The shock-absorbing member has a head protruding outside the cylinder, the head being designed to come into contact with the second element during mounting of the second element on the first element (14). The shock-absorbing assembly (17) includes, for each group (40A to 40C) of shock absorbers (42), a fluid accumulator (44) connected to each cylinder of the group of shock absorbers (42), to allow a hydraulic fluid transfer between the different cylinders of the group of shock absorbers (42) during contact between each head and the second element.

The assembly includes a one group (40A to 40C) of hydraulic shock absorbers (42), each shock absorber (42) comprising a hydraulic jack comprising a cylinder designed to be supported by the first element (14), and a shock-absorbing member partially received in the cylinder. The shock-absorbing member has a head protruding outside the cylinder, the head being designed to come into contact with the second element during mounting of the second element on the first element (14). The shock-absorbing assembly (17) includes, for each group (40A to 40C) of shock absorbers (42), a fluid accumulator (44) connected to each cylinder of the group of shock absorbers (42), to allow a hydraulic fluid transfer between the different cylinders of the group of shock absorbers (42) during contact between each head and the second element.