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The
Chassis
The
frame is
designed
to bolt
together,
made from
light
weight
tube, the
two side pieces
are made
flat and
are held
in
position
by the
motor
mounting,
seat
mounting
and front
end
mounting
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The
Motor
The
Mk-4 is
designed
to be driven by
a Gravitron
LAAA4002
DC
Electric
motor with
a direct
chain
drive to
the back
axel
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The
Power
The
Mk-4 power
surplice
is six re-chargeable
solar fuel
cells
designed
to last a
max of one
hour
before a
pit is
needed for
a fuel
cell
change
over
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Ramp
it up
The
back end
has a
frame that
folds out,
it
protects
the motor
and controllers
but when pulled
out
folds down
under the
Mk-4
lifting
the back
wheels off
the ground
which allows
for a
safer pit
service
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Big
Fat Slicks
&
Electric
Shocks
The
Mk-4 uses
large
racing tyres
and has a
street
style suspension.
The idea
is that
some of
the tracks
are built
around
temporary
sites
which
could involve
large
curbs,
lumps,
bumps
&
jumps
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The
Mechanics
The
Mk-4 is
designed
to be as
simple to maintain
and
service as
a quality
mountain
bike. The
Electric
Motors
mantra is
"keep
it
simple"
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