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About Wheel Size
The Memory-Map Bike 270 Pro comes with a speed sensor that reads the speed of your bike wheel rotation.
Distance between two points during your workout is thus measured if your bike wheel size is also properly
entered.
Compared with GPS distance, distance calculated by speed meter is more accurate for GPS distance is
likely to have GPS signal lost or other problem.
In order to acquire more accurate distance, accurate wheel size of your bike needs to be entered.
Setting Wheel Size
Main Menu
Setting
Wireless Link
ANT+ Devices
Wheel Size
1. Press the Up/Down
button to select the wheel size.
2. Once selected, press the OK button
to confirm.
3. Wheel size and circumference reading appear. Press the OK
button to confirm and return to the
previous level.
Usually the wheel size of the bike is marked on the tire.
Note: Circumference must be set within the range of 1000 to 2500.