An adjustable shock assembly is disclosed herein. The adjustable shock assembly includes a damper body having a main chamber with a working fluid therein. An adjustable active valve assembly comprising: a first parallel flow pathway comprising an active valve; and a second parallel flow pathway comprising a firm mode blowoff stack and a firm mode adjuster to adjust a blowoff pressure of the firm mode blowoff stack. A main piston coupled with a piston shaft, and a fluid pathway fluidly coupling the main chamber with the adjustable active valve assembly which is fluidly coupled with a reservoir

A vehicle suspension damper including: a cylinder; a piston assembly; and an adjuster, wherein the piston assembly compresses fluid as it moves within the cylinder and the adjuster obstructs fluid flow from a first side of a damping piston of the piston assembly to a second side of the damping piston.

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.

Altering the damping rate of a vehicle suspension damper. A pressure of a damping fluid is exerted against a second valve mechanism connected to the vehicle suspension damper. The pressure of the damping fluid is increased beyond a threshold of the second valve mechanism that is adjustable by an adjustment member. The adjustment member is exposed through a high pressure side of the vehicle suspension damper. The second valve mechanism is then opened.

A regulable vibration damper, which may be utilized in a vehicle chassis, for example, may comprise a cylinder barrel that contains hydraulic fluid in sealed-off fashion, a piston that is axially movable within the cylinder barrel along a cylinder barrel axis and that divides the cylinder barrel into two working chambers, and a piston rod oriented parallel to the cylinder barrel axis and that is connected to the piston. The piston may comprise at least two fluid leadthroughs that connect the working chambers. A first valve assembly for damping piston movement in a first actuation direction may be arranged at a first fluid leadthrough, and a second valve assembly for damping piston movement in a second actuation direction may be arranged at a second fluid leadthrough. In the piston, one or more bypass ducts with throughflow cross sections of different size for the two throughflow directions may form fluidic connections between the two working chambers that bypass the vestibules.

A damping force change mechanism includes an on-off valve located in a through hole of a piston rod. The on-off valve opens/closes a third hydraulic oil passage that allows a first oil chamber on a free piston side and a second oil chamber between a first piston and a second piston to communicate with each other. The on-off valve includes an expanded diameter portion in the first oil chamber extending outward in the radial direction. The expanded diameter portion faces the entire opening edge of the through hole and tightly contacts an end surface of the piston rod. The magnitude of a damping force is easily changed, and a damping force characteristic in a case in which the damping force is large is stabilized.

An adjustable shock absorber includes a base unit, a primary cylinder, a shock rod, a main piston, a biasing member, a hydraulic adjusting unit, a secondary cylinder, a floating piston, a valve module, and a micro-adjusting unit. When an impact force is exerted on the shock rod against a biasing force of the biasing member to force a working liquid to flow from a primary chamber into a liquid sub-chamber of the secondary cylinder, a working gas in a gas sub-chamber of the secondary cylinder is compressed to generate a damping force to act on the working liquid so as to permit the working liquid to flow back to the primary chamber. The damping force can be adjusted by adjusting a needle valve of the micro-adjusting unit.

A modern suspension damper, for example, a shock absorber or a suspension fork, including an inertia valve and a pressure-relief feature is disclosed. The pressure-relief feature includes a rotatable adjustment knob that allows the pressure-relief threshold to be externally adjusted by the rider “on-the-fly” and without the use of tools.

A shock absorber includes: a communication passage configured to cause a working fluid chamber formed in a cylinder to communicate with a reservoir for reserving a working fluid therein; a damping force generating mechanism configured to apply resistance to the working fluid passing through the communication passage; a low-speed compression-side damping adjuster configured to change a damping force when a stroke speed is in a low-speed range during compression; a high-speed compression-side damping adjuster configured to change the damping force when the stroke speed is in a high-speed range, the high-speed range representing higher speed than the low-speed range during compression; and an extension-side damping adjuster configured to change the damping force during extension. The low-speed compression-side damping adjuster, the high-speed compression-side damping adjuster, and the extension-side damping adjuster are attached to a tank side of the cylinder.

A damping valve includes a valve disc, a ring-shaped leaf valve, and a biasing mechanism. The valve disc includes a passage and a valve seat. The valve seat surrounds an exit end of the passage. The leaf valve is stacked on the valve disc. The leaf valve separates from and is seated on the valve seat to open and close the passage. The biasing mechanism causes a variable biasing force to act on the leaf valve to the valve disc side. The entire leaf valve is configured to axially retreat with respect to the valve disc. A clearance is formed between the leaf valve and the valve seat in a state in which the leaf valve is stacked on the valve disc with no load.