Shock Absorber Adjustable Multiple-Varying Orifice Material Steel Force 6.1 lb Max Cycle Rate 60 per min Max Weight 992 lb Rod Thread Size M27x1.5 Locking Yes Rod Dia 8 mm Cylinder Dia 27 mm Pin Dia 8 mm Stroke 25 mm Extended Length 156 mm Compressed Length 111mm Fixed Resistance No Adjustable Resistance Yes Damper Type 156 mm Includes Adjustment Knob