I bought these handlebars
Amazon.com : Retrospec Bicycles Pursuit Bull Horn Style Lightweight Alloy Handlebars for Track Bike, Black : Bicycle Bullhorn Handlebars : Sports & Outdoors
they're great handlebars, and much to my surprise can mount mountain bike 22mm shifters.
But they can't hold bar end shifters.
Now, the clamp size on these is 25.4. Does that mean that if I get one with clamp 31.8 I'll have better luck? OR maybe these are just unique handlebars?