Joined: Nov 2006
Posts: 19,810
Likes: 597
From: NJ, NYC, LI
Bikes: 1940s Fothergill, 1959 Allegro Special, 1963? Claud Butler Olympic Sprint, Lambert 'Clubman', 1974 Fuji "the Ace", 1976 Holdsworth 650b conversion rando bike, 1983 Trek 720 tourer, 1984 Counterpoint Opus II, 1993 Basso Gap, 2010 Downtube 8h, and...
There are 25.4" bars and stems; there are 26.0 mm bars and stems; and there are 26.4 bars and stems. And now there are even thicker ones. I'm not sure which you have. Aluminum from beer/soda cans makes a pretty good shim, but you have to get it right. It's very annoying to hit the brakes and find your handlebar pivoting forward in the stem.