Hi, Could someone tell me how to tighten campag athena brake levers, which are a little loose on bars. I'm that old that I used to have the single levers which tightened by inserting an allen key, but I know there's other stuff going on inside there now, and am frightened I damage internal mech by poking around. I realise my ignorance may make some chuckle, but I'm happy to accept some ridicule in exchange for some sound (idiots guide style) advice. Thanks, Mark