Shock Absorber Adjustable Single-orifice Material Steel Force 4.6 lb Max Cycle Rate 60 per min Max Weight 661 lb Rod Thread Size M20x1.5 Locking No Rod Dia 6 mm Cylinder Dia 20 mm Pin Dia 6 mm Stroke 16 mm Extended Length 110 mm Compressed Length 94mm Fixed Resistance No Adjustable Resistance Yes Includes Adjustment Knob