If you buy the CNW barrel stud and nut kit you'll not only have to pull your barrels and install Matt's studs, but you'll be putting at least 4 of those pretty studs and nuts in your parts collection. The through bolts take up 4 holes on the Molnar barrels.Been a few months since I was on--not hard to understand since I am currently 8,875 miles from my Norton. I really like the yellow, I also have always liked that shape Commando tank best. ALSO, don't forget where you got those nice 12 point cylinder base nuts!! I need a set of those for my P11, it looks like they would work with my alloy cylinder better than the 6 point ones do.