I believe you can get them to fit the stock bars.
Streetfighter Bar End Mirrors :: OBERON Performance Motorcycle Parts & Accessories
Those are smaller and do not have the convex glass which would be very hard to see. I had a set of CRG Blindsight which are the same size but convex and worked very well but I have extremely good eyesight and almost everybody else that rode my bikes with them on hated them. I think only the 75mm ones are convex from Oberon, it's a shame they are beautiful little mirrors and would look great on my Speed Triple but I got to have form and function on my bikes. I have had my Oberons for almost a year now and I love them, beautiflly made and work as good as CRG's (I love CRG's too) but look better on this bike than the CRG's.