I say the fz1 forks are totally different to r6 and r1, i know they are, but just to settle the arguement,........
my pal recons from the factory the fz1 comes with r6 forks, i say the 25 year old puppy should stick to his old c90 and bandit 600
i recon they share no similar parts and are completely different, although they can be easily made to fit