I got some from busters, They work ok,£25 down from £50. they are a generic type so will fit most bikes, screws in the brake side, and you can get a bracket of ebay for the clutch side, or get a fz8 clutch bracket with the threads built in, it is a perfect fit. It does leave two holes , but you can get some block off plates, not sure where, im sure somebody will be along with a link .
Tex