I made a post similar to this in the fixed gear section but nobody seems to have any info for me. I have an old aluminum track frame that has track ends that are kind of worn causing the wheel to slip even when I tighten the bolts quite snug. I'm wondering if there is some way to install steel inserts like those found on aluminum track bikes that are currently made. For safety reasons I'd probably want it professionally done but I'm not sure who to bring it to.