CGG . . . not my initials, but a tribute to a great teacher: Cat Gruener-Goss. You may google the name. I'm a relative outsider to bike "culture", though I've been a summer bike commuter for many years. It's only lately that I've plucked up the courage to take tools to my bike. Much practice, repetition and reading of Barnett's Manual will be required, but each iteration builds my courage.