they probably do as they have them listed for both S and R models. Only thing is it will probably not work for Ss long, STT, Uly and the raked S and R models. That is, those that has the Free Spirits trail kit at their bike.
What is also interesting is for those that use aftermarket handlebars. For example Crossroads Performance bars and all "cafe racer" versions. I wonder if the R model stabilzer works at these bars. A steering stabilizer should be original at R and especially S models. The more aggressive geometry at the bike, fork angle, the more use of these we have.
According to a dealer the 1125R wobble extremely much around 250Km/h - and over. They also ment that the 1125R should absolutely have a steering stabilzer as original.