A mate of mine in Canberra just bought himself a 2002 BMW 1150 GS.
The ABS unit was an issue. He just dropped me a line to let me know of a company in the USA that services ABS units for a lot of vehicles, including BMW motorcycles, and at a pretty reasonable price

ModuleMaster: http://modulemaster.com/
Our 2002 BMW 1150 GS had the ABS unit replaced a few months prior to our purchase. The repair receipt was over $2000...
