2007 and earlier wheels used a mechanical or notched system on the wheel for the ABS. In 2008 they updated the whole ABS system (a major improvement) and went to a magnetic ring on the wheels for the ABS system. The two are incompatible.One on ebay
YAMAHA FJR1300 ABS 2008 2011 08 11 REAR WHEEL RIM ALLOY FELGE HINTERRAD | eBay - About $215 shipped
Out of curiosity, what is the difference between a 2007 and 2008 rear wheel?