In the press anouncement for the bike Aprilia made 2 admissions.
On previous Aprilia models it was found that a hydraulic clutch system could not cope with the high engine temps.
second was
We have relocated the rear brake M/C to a rearset mounting due to overheating problems with it mounted outside of direct air flow and near to high temp exhaust components
references i'm sure to the rsv although they never actaully said as much