As far as I can see
It will NOT fit pre-'68 narrow-case models
1) 06-2592 spring (stainless)
to mount the engine of most Ducati widecase singles
Spigots are perfectly suited to Ducati twin
Ducati Clutch Spring/Screw SET 6-speed ST2 ST4 748 996 998 999 BSA Carburetor As far as I canAmerican made, great quality. Springs are about 10% stiffer than stock. Includes stainless allen screws, not shown. Fits the Ducati models noted, to my knowledge: 2007 2008 Superbike 1098, 2003 2007 1000 Supersport, 1995 2008 Sportclassic 1000, 1995 2008 Diverse MH900e, 1995 2008 Multistrada 1000, 1989 2002 Supersport 900, 2003 2006 Superbike 749, 1994 2002 Superbike 748, 1994 1998 Superbike 916, 1995 2008 Sporttouring ST2, 1995 2008 Monster 900 1000