Just something to be aware of guys...if your bike is lowered, moving the boards out too much can cause some serious issues going through the twisties, as in the floorboard brackets dragging instead of the underside of the floorboards themselves, which fold up a bit so it's not a problem. The floorboard brackets will lever the rear wheel off the pavement...that's happened to one member here already. The Kury spacers are 3/4" and they don't seem to cause problems, but when you start getting further out than that, it might be a good idea to ensure hard, unforgiving parts won't hit the pavement before the floorboards themselves. There's a reason those front floorboards fold up under slight pressure.
If you've got a bike with full height suspension, front and rear, you can probably get away with 1" spacers

, but if you've got a SESG, SEEG, or SERGC with the 1" lower rear (SEEG is lower front and rear), I'd be checking clearances out before going to a 1". I'd be very apprehensive with anything over 1", regardless of bike model.