Hi fellow Bsa owners , got fed up trying to get a decent barrel for my 650 twin , thick flange etc etc ! So Ive made my own ,with a 18mm flange !! in alloy ,the first pics are the first barrel out of the mould , rough but lovely !! I am writing the Cnc program for it now , as I did to make the cylinder casting patterns . My aim is to get my twin just a little more reliable , lighter !! And quicker ofcourse .I am also making a twin carb alloy head for it to.The casting patterns are now finished and the first sand cast forms are made .Its all getting rather exciting at last . Been on this for a while now .Will send more pics as it comes together .