For 74 inch and 80 inch FL, FLH and FLHX, late 1977-1984, FLT(C) and FLHT(C) 1980-1983 Showa. To identify Showa tubes internally the tube has groove around bottom. Externally the lower fork sliders flare out at the bottom and the top bolt has metric threads. Stock, 20 7/8 inches long.