I installed 1" black anodized, CNC machined, Billet T6 aluminum mirror extenders on the Busa today to give me a better view of what's behind me. Great price - $29.90 delivered:
These extenders have a great finish and are high quality. It comes with two lengths of bolts. the longer ones fit the Gen 1:
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After removing the mirrors, the spacers fit like they were a part of the bike:
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The mirror with the rubber gasket fits on the other end of the spacer:
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The rubber gasket provides the gap necessary for the rubber sheath to fit nicely against the extender:
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It took about 10 min to install both extenders.
I haven't had a chance to try them out yet but from just sitting on the bike, I can already tell the rear view is much better.