Cateye Strada Smart CC-RD500B Online Manual page 11

When Strada Smart displays [FULL] on the screen and returns to the menu:
Up to 9 separate sensor IDs can be paired with Strada Smart. If the maximum number of
sensors have been paired, with the computer in pairing standby state, press MENU for 4
seconds to clear all pairings.
* Pairing standby time is 5 minutes. Activate the sensor within this time.
4. Press MENU to confirm pairing.
If you want to continue pairing another sensor, repeat the same operations again.
Pressing MENU again returns to the measurement screen.
* If you have changed settings, always press MENU to confirm changes.
Important
Tire circumference setting