Pair A Cycling Sensor With Your Watch; Bike Settings; Measuring Wheel Size - Polar Electro Vantage V3 User Manual

Pair a cycling sensor with your watch

Before pairing a cadence sensor, speed sensor or a third-party power sensor, make sure they have been correctly
installed. For more information on installing the sensors see their user manuals.
If you are pairing a third-party power sensor, please make sure that you have the latest firmware both in
your watch and the sensor. If you have two power transmitters, you need to pair the transmitters one at a
time. After pairing the first transmitter, you can immediately pair the second one. Check the device ID on
the backside of each transmitter to make sure you find the correct transmitters from the list.
1. On your watch, go to
2. The watch starts searching for your sensor. Cadence sensor: Rotate the crank a few times to activate the
sensor. The flashing red light in the sensor indicates that the sensor is activated. Speed sensor: Rotate the
wheel a few times to activate the sensor. The flashing red light in the sensor indicates that the sensor is
activated. Third-party power sensor: Rotate the cranks to wake up the transmitters.
3. Once the sensor is found, the device ID is displayed. Press OK to start pairing.
4. Pairing completed

Bike settings

1. Sensor linked to:
2. Set wheel size is displayed if you paired a speed sensor or a power sensor that measures speed. Set the size
and press OK.
3. Crank length: Set the crank length in millimeters. The setting is visible only if you paired a power sensor.

Measuring wheel size

Wheel size settings are a prerequisite for correct cycling information. There are two ways of determining the wheel size
of your bike:
Method 1
Measure the wheel manually for the most accurate result.
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Use the valve to mark the point where the wheel touches the ground. Draw a line on the ground to mark that
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point. Move your bike forward on a flat surface for one complete rotation. The tire should be perpendicular to the
ground. Draw another line on the ground at the valve to mark a full rotation. Measure the distance between the
two lines.
Subtract 4 mm to account for your weight on the bike to get your wheel circumference.
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Method 2
Look for the diameter in inches or in ETRTO printed on the wheel. Match it to the wheel size in millimeters in the right
column of the chart.
ETRTO
25-559
23-571
35-559
37-622
52-559
20-622
52-559
23-622
General Settings > Pair and sync > Pair sensor or other device
is shown when you are done.
is displayed. Choose Bike 1
Wheel size diameter (inches)
26 x 1.0
650 x 23C
26 x 1.50
700 x 35C
26 x 1.95
700 x 20C
26 x 2.0
700 x 23C
or Bike 2. Confirm with OK.
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and press OK.
Wheel size setting (mm)
1884
1909
1947
1958
2022
2051
2054
2070