A question for the how and why Gurus. I seem to get about 5 months out of a rotor before it comes loose on the shaft. But the other thing that is happening is that I get a lot of track wear Pic 1. around the inside rim of the ball and corresponding grooves on the rotor support ring Pic 2. There is nothing wrong with the rotor pictured just the track and support band. I tried the emery paper thing. I did it before my hour spin then pulled the ball apart again and it was same again. I took some impressions of this and a new ball and the gap between the tracks is 1mm wider. Does any one else get this should I be getting new rotor bands more often? The down side is that it creates a lot of friction on the ball and slows it down a good 800 rpm or so without being particularly rattly???
Another question can I use a support band with a magnet for a neon on a pro rotor