PREPARATION
Batteries
Remove
battery
cover from the
bottom
of
the
unit
Install
the
1,5v battery
with
the
positive (+)
pole facing the battery cover
and
replace
cover.
(Fig
1)
NOTE
:
Removing
battery
will
also
erase
Wheel
Size Input
and
MPH/KPH
selection.
MPH/KPH
Preset
You can
preset the
speedometer
to
readout
in
Miles or
Kilometers per hour
by
pressing the
ALARM
key
(Fig.
1
-
E).
When
the appropriate
selection
appears on
the readout, press the
SET
key
(Fig.
1 -
D) to
enter.
Resetting the
MPH/KPH
selector requires
removal
and replacement
of
the battery
to clear
the
computer's
internal
memory.
Wheel
size Input
For accurate
speedometer
readings
you
must
input
the
wheel
size factor of
your
bicycle
in
millimeters Multiply
wheel
radius
by 3.9042
(for
MPH)
or
6.2832
(for
KPH)
to
derive
wheel
size
factor
input.
(NOTE
:
1"
=
25.4
mm)
Input factor
by pushing
the
MODE
key
until
ODO
appears
on
the readout.
Press
SET
key
for
2
seconds
ALARM
key
will
now
select flashing
digit
for
input (hold to
fast
advance),
and
the
SET
key
will
adjust
to
desired
number
When
input
is
complete,
push
SET
key
to exit
For
convenience you can
refer
to
this
chart
of
wheel
size factor
inputs
:
Wheel
MPH
KPH
20"
992
1596
22"
1093
1759
24"
1191
1916
(0
1288
2073
w/tire
700
x
25
c
1320
2124
27x1"
1327
2136
27x1
1/4"
1339
2155