0801.38.630 (080138630) - 25/9 ratio speedometer drive for all bevel drives with Nippon Denso gauges [Darmah etc].
This is a very nicely manufactured reproduction unit.
Order it by itself or also get a new stainless steel washer that goes between the inside of your fork leg and the speedo drive.
*NOTE: The long tab will fit ALL wheel applications on bevel drive twins but you must trim the length of the tab so that it doesn't bottom out inside your specific wheel..