alot

Just wondering if possible at all if the duke 690 engine would fit into the rc 390 frame i know you have alot of other variables aswell

I am no expert rider, Some what of a fast intermediate, but yesterday I had my first track day on the bike and I can tell you 2 things. The rear shock is total crap, and the brakes need more initial bite, maybe solved just with some lines and pads. I am in setting 9 in the rear shock, and I...