Registered Forum User
Big Twin
Posts: 1,773
Join Date: May 2004
Mood: Proud to own a Ducati :0)
15/35 and 14/38 will give very similar overall gearing. As to why they're set up that way I have no idea.
I would think going to 14/35 would be a good thing, and you could use the standard chain. Shazaam gave a chart on here a while back with ideal gearing for each Duke. You might want to do a search and dig it out...