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Here you can see the basic
relationship between the frame and the motor. Note that I am placing the swingarm pivot
tube as close as possible to the counter shaft sprocket. Motor mounts, when placed, will
help triangulate between the swingarm pivot tube and the lower horizontal tubes. There are
two motor mounts, one just behind the counter shaft sprocket and another on the top of the
gear case. |
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A view from the rear. Notice
slim clearance between the counter shaft sprocket and the frame tubes (lower left).
Chain clearance may necessitate the offset mounting of the motor slightly to the
right. What affect this will have on the over all balance of the bike is yet to be seen.
Ancillary components could be offset to the left to compensate. |
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Now the motor
is hanging from the top two motor mounts which are attached to a frame cross bar just
above the motor. None of the mounts are welded at this point because I still have to
construct the lower motor mounts which attach to the swingarm pivot tube. The mounts are
made of 1/4" thick mild steel attached to a 3/4" x .049 CrMo cross bar tube. The
engine case will form a stressed member triangulating between the swingarm pivot tube and
the main frame members. |
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