| Actually I think that the 1098 run 330mm discs.
There is no change of caliper, pads or anything to run different size discs. The only think you need to change are the spacers on the forks typically.
I run 320mm and 290mm on my RS and all I do is change the spacers. I had some made up as well as Ducati Corse ones were just silly money. That said, road gear is cheaper, so maybe just look at the right part numbers from the catalogue and ask for prices.
p | 
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