ok will 749s calipers fit my s2r (i know the disks are different diameters)

[markus]

will they huh huh huh - I've got my answer for the disks - those I'll get elsewhere later on, but will the calipers fit my mounts and work if I get other 320mm disks.
I've just said goodbye to the tickiest set i've ever seen - this might fill the void thats now in my soul..........(que over dramatisation)

[Scotty]

in a word yes

[Gilps]

That's what I've got on mine. Careful though as they are fierce. My advice is to keep the original m/c to lessen the bite.