How to assemble the Mach 3 wheel, done on one of the prototypes -- there may be some differences in appearance and parts with the production Mach 3 wheels. The major new feature of this wheel is the treadle assembly -- all of the SpinOlution wheels -- Hopper, Echo, Bee, Mach 2, Mach 3 -- have, as of mid July 2010, this split-treadle assembly, for self-adjustment on the pitman bearing.
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