I've got a used set of OEM Yamaha front rotors for sale.
These came from a 2007 R6 and last I remember they had about 3000k on them before they were removed for an upgrade.
Discs are in excellent condition and have no warping, chips, gouges etc etc. Lots of life left in them.
Currently in bubble wrap and a box.
Looking to get 170obo for the set.
Note: I'm pretty sure these will not fit the R6S model (or any R6 model before '06), though I've known to be wrong.