Abstract: An adjustment control for adjusting a damping curve of a shock absorber includes an aperture seat coupled to a base of the shock absorber. The aperture seat defines a flow tube. A plug, in mechanical communication with a spring, slidably engages the flow tube. A plug nut is threadably coupled to an adjustment nut shaft stud and is in mechanical communication with the spring. An adjustment nut is coupled to the base. The adjustment nut has a non-circular cavity to receive at least a portion of the adjustment nut shaft stud and at least a portion of the non-circular region of the plug nut such that the plug nut cannot rotate relative to the non-circular cavity of the adjustment nut. An adjustment knob causes rotation of the adjustment nut shaft stud. The rotation of the adjustment nut shaft stud causes axial movement of the plug nut.

Abstract: An adjustment control for adjusting a damping curve of a shock absorber includes an aperture seat coupled to a base of the shock absorber. The aperture seat defines a flow tube. A plug, in mechanical communication with a spring, slidably engages the flow tube. A plug nut is threadably coupled to an adjustment nut shaft stud and is in mechanical communication with the spring. An adjustment nut is coupled to the base. The adjustment nut has a non-circular cavity to receive at least a portion of the adjustment nut shaft stud and at least a portion of the non-circular region of the plug nut such that the plug nut cannot rotate relative to the non-circular cavity of the adjustment nut. An adjustment knob causes rotation of the adjustment nut shaft stud. The rotation of the adjustment nut shaft stud causes axial movement of the plug nut.

Abstract: An adjustment control for adjusting the damping of a shock absorber includes an aperture seat to be secured to a bore of the shock absorber; a needle nut including a needle; an adjustment nut shaft stud including a threaded portion configured to engage with a threaded portion of the needle nut; an adjustment nut to be secured to the base and defining a non-circular cavity to receive at least a portion of the adjustment nut shaft stud and a noncircular region of the needle nut such that the needle nut cannot rotate relative to the non-circular cavity of the adjustment nut; and an adjustment knob, wherein rotation of the adjustment knob causes rotation of the adjustment nut shaft stud relative to the adjustment nut, and wherein rotation of the adjustment nut shaft stud causes axial movement of the needle nut relative to an orifice of the aperture seat.