i HAVE A '99 ZX6R. I just put a 180/55/17 Sportec on the back. No issues with rubbing, there's plenty of room. I have the 120/60/17 Sportec on the front and the bike handles much better. Easier turn-in, stabile at speed. Very happy with the result.
'99 ZX6R
'02 Raptor
'01 Wolverine
'87 Radian
'99 ZX6R
'02 Raptor
'01 Wolverine
'87 Radian