I saw this when I first tore down the bike and now that I have it back together, I'd like to fix it. One of the rear axle tabs, on my Trail Horse mini, has gone egg shaped, (out of round). Since the axle itself has been ground about 1/4 of the way through, in the process, I have to assume the axle rusted to the wheel bearings and the whole thing spun. The whole thing, axle tab and axle now amount to about 1/2 to 3/4 of an inch in chain jumping axle travel. The new axle helps and reduces the amount of vertical travel, but it isn't a real fix. I am thinking of welding a Grade 8 washer on the outside of the tab. That would certainly get it back into round. Has anyone had any similar experience? How did you handle it?