I have have an old school Stelber unicycle with shot bearings. They are really weard bearings that have a vertical flange of metal that bolts onto the fork (two bolts per pearing) . Is there any where i can get this fixed. The bearings are really loose which causes the tire to rub on the forks. This makes my unicycle suck. I really want to have this little beast running corectly. If you could give me some hints on where I could best fix my problem, that would be great.