Shock Absorber, Adjustable; Single-Orifice, Material Steel, Force 15.4 lb, Max. Cycle Rate 30 per min, Max. Weight 3,087 lb, Rod Thread Size M36x1.5, Locking No, Rod Dia. 12 mm, Cylinder Dia. 36 mm, Stroke 50 mm, Extended Length 235 mm, Fixed Resistance No, Adjustable Resistance Yes, Includes Adjustment Knob