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Wheel Size Enter the bike wheel circumference. Press 8 to close the setting change window.
The range is 59 – 98 inches (1500 – 2500 mm).
To Calculate Bike Wheel Circumference
The table below indicates the circumference of some common sizes of bike wheels for standard adult bi-
cycles.
Tire Size Approx.
Circumfrence (mm)
700 X 56 2325
700 X 50 2293
700 X 44 2224
700 X 38 2224
700 X 35 2168
700 X 32 2155
700 X 28 2136
700 X 25 2105
700 X 23 2097
700 X 20 2086
27 X 1 3/8 2169
27 X 1 1/4 2161
27 X 1 1/8 2155
27 X 1 2145
26 X 2.125 2070
26 X 1.9 2055
26 X 1.5 1985
26 X 1.25 1953
26 X 1.0 1913
26 X 1/650 C 1952
26 X 1 3/8 2068
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.