Hi. Can anyone recommend a set of bar ends that are "narrow," in the sense that they don't take up much space at the ends of the handlebar? Ideally, I'd like to find some that simply insert into the handlebar and extend it. My goal is to use up as little of the handlebar as possible--I like the positioning of the grips right where they are and would rather not have to move them in, even 1/2 inch. Thanks a lot.