Have a set of GPZ1100 cams from a 96 bike, which will fit the ZRX1100. Might make for a good cheap replacement giving more power than the original cams did and more midrange than you'd get with the ZZR1100 cams. The cams are in good condition, minute bit of insignificant pitting on one lobe but way better looking than my ZRX cams looked when they were swapped! £45 posted to you.