Came across this little gem while trawling through forums which is what I do on a night to cure the boredom.
320mm rotors will fit GSXR 600/750/1000 K1/K2 and 600/750 K3. TL1000R/S, GSXR 600/750 SRAD, Hayabusa 99/07.
Also with 4 little 10mm spacers (and 10mm longer bolts) you can fit these 320mm rotors onto a GSXR1000 K4 (which uses 300mm rotors as standard) to get some more braking power/heat dissipation. Whether it actually improves braking power, I do not know 100% but this is what I’m doing on my GSXR and we will see.
goodpoint, apparently the R1 monoblocs (not sure of year) will fit with different spacers and they are meant to be the bees knees and they look good too. when i said more braking power i forgot to mention the R1 radial master cylinder i have to go with the GSXR radial calipers. oops