I can't see any reason why I should compare power measured at rear wheel with the power 1125R claims to have.
Aprilia lists RSV Mille with 143bhp (997 ccm)
Ducati lists 1098 with 160phb (1098 ccm)
And ofcourse, next year, Ducati is coming out with 1198 ccm engine, and the Aprilia is developing a 1000 ccm V-4 engine that is supposedly going to have more than 200hp.