Shock Absorber, Adjustable, Material Steel, Force 22.4 lb, Max. Cycle Rate 30 per min, Max. Weight 4,409 lb, Rod Thread Size M36x1.5, Locking No, Rod Dia. 12 mm, Cylinder Dia. 36 mm, Stroke 25 mm, Extended Length 150 mm, Fixed Resistance No, Adjustable Resistance Yes, Includes Adjustment Knob