hello mate ive just got 1996 rrt fireblade i love the bike last owner spent loads on it single swing arm 3 spoke dymags orlins shock ect and i was thinking ov selling it til i read your comments about this nockin sound mine has it at low revs goes at about 4500 was worrying me ive been told its piston slap is this true glad i read your comments made me feel better, so i should enjoy it and not worry cheers tony