I'm used to the 749 mirrors and find the mirrors on the 1198 far too wide. I tried to take the extenders off but then the bolts don't match up. On the 1098 is there a separate thin plate between the mirror and fairing to align the bolts with the holes, or do i need to find a set of 1098 mirrors?
No plate that I'm aware of just a bit of rubber. I'm not sure exactly what your driving at. I've got a set of DP mirrors on the 1098, I found the originals useless due to vibration, the DP mirrors are much better, a little smaller and the downside was the inbuilt indicators are shite very poor compared to the originals. Try this guy but NOT cheap, I think his DP mirrors have better LEDs than the originals, or maybe the Gran Turismo. Although costly better than purchasing a useless set of original equipment 1098 mirrors IMHO Moto-Science : The Ducati Mirrors Specialist - Home
I fitted the GT mirrors and although they are expensive they are worth it, Henri is a genuine guy to deal with and gets back to you straight away. He knows how to ship to the UK. Paul