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WHEEL SIZE CHART
Wheel/Tire Size Wheel Size Setting
in mm
26 x 1.0 ATB . . . . . . .1913
26 x 1.25 . . . . . . . . .1953
26 x 1.5 . . . . . . . . . .1985
26 x 1.9 . . . . . . . . . .2055
26 x 2.0 . . . . . . . . . .2074
26 x 2.1 . . . . . . . . . .2095
26 x 2.2 . . . . . . . . . .2110
700 x 20c . . . . . . . . . .2074
700 x 23c . . . . . . . . . .2114
700 x 25c . . . . . . . . . .2124
700 x 28c . . . . . . . . . .2140
700 x 32c . . . . . . . . . .2155
700 x 35c . . . . . . . . . .2175
700 x 38c . . . . . . . . . .2180
700 x 40c . . . . . . . . . .2190
650 x 20c . . . . . . . . . .1945
650 x 23c . . . . . . . . . .1990
Wide 700c Tubular . . . . . . .2117
Narrow 700c Tubular . . . . .2105
27 x 1” . . . . . . . . . . .2145
27 x 1-1/4 . . . . . . . .2160
ATB
ROAD
QUICK REFERENCE GUIDE
Desired Function Which Key to Press Notes
Advance Digits While Programming Left Key Hold for Fast Advance
Set Digits While Programming Right Key
Set Clock Right for 2 Sec. In MXS/Clock Screen
Set Miles/Kilometers/Wheel Size Right for 2 Sec. In AVS/ODO Screen
Enter ATM “Lap Timer” Display Left for 2 Sec In any Screen
Reset ATM, DST, AVG and Max Right for 2 Sec. In SPD/ATM Screen
TROUBLESHOOTING
• No Speed Reading
Improper magnet to axiom alignment,
computer improperly installed
in bracket.
• Slow Display Response
Temperature is outside operation
limit (0˚-55˚C).
• Display is Black
Temperature is too hot. Remove from
direct sunlight to return to
proper operation.
• Display Fades or Disappears
Weak or dead battery, dirty
battery contacts.
• Irregular Display Figures
Check and record Total Odometer, then
press Auto Clear button to initialize
computer. Follow setup procedure and
adjust Odometer setting.
Method Two:
Measure wheel radius (including tire) in
mm and multiply by 6.2832=Wheel
setting number.
Method Three:
Refer to the following chart and input
the number that corresponds to your tire
size. (Note: Actual size of two similarly
marked tires from different
manufactures can vary significantly,
making this method the least accurate.)
Radius x 6.2832 = Wheel Setting
01Axiom 98 6/12/00 10:48 AM Page 10