well the reason is they are not ZRX's.
. but seriously folks. Bandits and ZRX's were two of the most hotly contested "Who's Best/" bike of the early 1999/2000. Both could be made to go much faster with assorted factory parts, handle better with simple parts and stop like in glue with better pads and disks. It usually boiled down to brand loyalty and Old school vs newer school. I sold my REX and regretted it before I even quite the ad. But I have a Busa now. its better in most every way but comfort. I can live with that