This 10mm spacer kit works with the new Woodcraft Offset clipon riser that is used on the kits below.  The riser itself has a 10mm offset built into it- and with the addition of this spacer it brings the total offset to 20mm.  This allows for perfect clearance on these models (most often when run in the "down" position). Fits 12-1419 Yamaha FZ09 MT09 adapter plate set- 12-1790 KTM 790 clipon adapter plate- street- and 12-1790R KTM 790 clipon adapter plate - race.