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Big Twin
Bikes: 916SPS Ratbike + 749R Shed
Posts: 1,030
Join Date: Jun 2001
Location: West Sussex
Mood: Ugly girls (749) are more dirty.....
If you can't get some nicely turned ally shims you could try either a thick stack of washers or a simple square/rectangular ally block of suitable thickness drilled to suit the mounting bolts.
RX