Ducati Kickstart Spring Update Kit 0603-07-000 narrowcase 250 350 bevel

New production.  Should be an exact copy of the much more expensive NOS version I have out there.  Save yourself some money. Pretty rare kit.  To replace the problematic leaf spring setup on all 4-speed and many 5-speed models.  Later 5-speeds used most of these parts. but with cast bosses instead of the spacers provided here. Requires careful drilling and tapping of left crankcase, using grease to catch the shards and avoid splitting the cases. Installation requires SKILL, which you hopefully already have as you're working on these things. Includes everything shown.