The clerk at the Trek store told me that I couldn’t install both the bar ends and the bar end (Mirrycle) mirror on my Trek FX 3 because the Bontrager Isozone handle bars require a Bontrager Isozone Bar End Adapter that would plug the end of the handle bar leaving no room to attach the mirror. But you have a bar end mirror and bar ends on what seems to be Isozone handlebars. Please tell me the clerk was wrong because I want the bar ends for long rides but really love the bar end mirrors. The (non-mechanic) staff at Trek the local store seem a bit dense so wouldn’t be surprised if they got it wrong.