Hello Chaps
After a quick check on the old girl, it is apparent that I cannot go much beyond the standard Euro bars, due to the restricted cable length.
Checking the fiche sites, the US spec bikes have the longer RT cable set, whilst Euro bikes have a standard set (also compatible with the RS bars).
So, replace choke, clutch, throttle x2, plus brake hose, or go Euro bars

Anyone in the UK got a set of standard genuine BMW bars at a reasonable price, please ?
Rgds
Chopps