Hi Christian, You could have a look at the overlander systems discussed in this thread -
CLICKOriginally found them and put upthe company details in this thread -
CLICKYAnd were fitted to Phils bike (EXS1.1) in this thread -
CLICKETY CLICKHe did have some issues with the ream mounting brackets apparently, but they did fit after some mods to the holes? and they look great. Maybe a quick PM to Phil might help shed more light on the issue?
Apparently, Overlander are after an XS11 to use to get their jig setup properly to avoid any more future fitment issues.