The NCM is auto-switch capable without any change in cylinder dimension. Bore sizes range from 7/16in. to 2in. and standard strokes from 1/2in. to 12in.. Foot bracket, Applicable series: NCM, Applicable bore size *: 3/4, 7/8, 1 1/16, 1 1/4, 1 1/2, FOOT MOUNTING KIT, ACTUATOR, NCM ROUND BODY CYLINDER, N2, 2.0 INCH NCM ACCESSORY, .01320 lb