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Bikes: 748S, HM1100S, V4SP, Was: DD-A #111
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Join Date: Feb 2002
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You should be able to pick up the revised sprocket flange with spacer from a breakers - I got one for 30 quid + a fiver postage. Direct from Ducati they are 95ish for flange and 7ish for the spacer.
The sprocket flange that uses a circlip (916 style) differs from the one that uses the spacer (998 style), so you need both the new flange and spacer.