I'm so glad I sat down with my mate Adrian several years ago and designed these crankcase savers after Ducati Stopped selling them and I had the DID chain break on my 996 requiring a replacement of the alternator case.
http://www.ebay.co.uk/itm/DUCATI-748...em2c647 4057d Since then I have had a chain brak on my S2R (yes I know wheelies aren't the best thing for a long chain life)
And on Saturday I had another chain break on a 996 while doing about 80.
Luckily on both these later occasions the crankcase and alternator covers were untouched.
Here is the chain and case saver from Saturday's incident
Needless to say many of my bikes are fitted with them iincluding the DD bike