Tire circumference setting
Set the tire circumference for a sensor capable of speed measurement.
Important
• Pairing (sensor ID synchronization) must be performed first.
Pairing (Sensor ID synchronization)
• Set tire circumference for each sensor. The default value is 2096 mm (700x23c).
1. From the measurement screen, press MENU to switch to the menu screen.
Measurement screen
Menu screen (Clock setting)
* When the menu screen is left on for 1 minute, Smart computer returns to the measurement screen.
2. Press MODE to display 
(tire icon) and then press MODE for 2 seconds.
(2 seconds)
3. Select the sensor you want to set, and enter the tire circumference.
Enter the circumference in mm of the tire (the length of the outer circumference of the tire) on which the sensor is installed.
(Setting range: 0100 – 3999 mm)
Determining tire circumference
Sensor selection
(2 seconds)
(2 seconds)
Increase numbers
Tire circumference value
Move to next digit
(2 seconds)
* Sensors that can be selected are those that have been paired with Cateye Cycling™ or a smart computer. The letter that appears after the sensor name indicates how the sensor was paired.
• A : Sensor paired with Cateye Cycling™
• C : Sensor paired with a smart computer
* Error is displayed if values outside the setting range are entered.
4. Press MENU to confirm settings.
Pressing MENU again returns to the measurement screen.
* If you have changed settings, always press MENU to confirm changes.
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