Timex Global Trainer M229 User Manual page 31

Wheel Size
The table below indicates the circumference of some common sizes of bike wheels for standard adult bi-
cycles.
You can also use the "roll-out" method to measure your wheel circumference.
1. Place your front wheel on the ground with the valve stem in the 6 o'clock position.
2. Mark the position of the valve stem on the floor.
3. Roll the bike forward, keeping pressure on the handlebars, until the valve stem is again at the 6 o'clock posi-
tion.
4. Mark the position of the valve stem on the floor.
5. Measure the distance between the two marks.
Power Meter
Set up how the Global Trainer™ Bodylink® System Watch calculates and displays power meter zones.
To Configure Power Meter Settings
1. Press MODE until CONFIGURE displays.
Enter the bike wheel circumference. Press
The range is 59 – 98 inches (1500 – 2500 mm).
To Calculate Bike Wheel Circumference
Tire Size
700 X 56
700 X 50
700 X 44
700 X 38
700 X 35
700 X 32
700 X 28
700 X 25
700 X 23
700 X 20
27 X 1 3/8
27 X 1 1/4
27 X 1 1/8
27 X 1
26 X 2.125
26 X 1.9
26 X 1.5
26 X 1.25
26 X 1.0
26 X 1/650 C
26 X 1 3/8
to close the setting change window.
8
Approx.
Circumfrence (mm)
2325
2293
2224
2224
2168
2155
2136
2105
2097
2086
2169
2161
2155
2145
2070
2055
1985
1953
1913
1952
2068
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