VT No: 49-0271 OEM No: 51610-36 Heavy duty seat post is assembled with a full set of springs installed, hex nuts, and spacers. Seat post diameter is 1.180". These seat posts are equipped with the heavy duty spring set installed! Pin for swivel top tab is pressed in place as original. Fits: EL 1936-1940 FL 1941-1980 UL 1937-1948 UOM: 1 - EA Country of Origin: Imported