I've been working on installing my new Suburban Machinery Type 2 handlebar, and everything was going smoothly until i tested the throttle. The throttle tube is sticking badly, and it looks like it's because either the bar is slightly oversized or because of the relatively unfinished surface of the new handlebars. Has anyone had this problem? How did you solve it? The obvious solution to me is snad and polish the bar under the throttle tube, but why the hell should I have to do finish work on a handlebar I paid $140 for?