LJDRVR 0 Posted March 7, 2017 I've just purchased a 6154 that has been nicely vintagized. Although I'm happy to try out the smaller Brevet crown, I was wondering; How difficult is it to mod a 6154 to 6152 standard with the lockdown crown? Thanks! Share this post Link to post Share on other sites
LJDRVR 0 Posted December 28, 2017 Anybody have an answer to this one? Share this post Link to post Share on other sites
NCRich 13,747 Posted December 28, 2017 Well, I don't know what your current crown specs are. But if you buy an appropriate crown and stem (athaya) then you most likely will have to drill the case, tap the threads, then install the tube, trim the stem to fit, and Bob's your uncle. Share this post Link to post Share on other sites