For switching in between the saved bikes, please proceed the following:
1.    Access the menu “average speed” (AVG) in the lowest display line. Now you should see AVG and a small cyclist above the lowest display line.
2.    Press the upper button and hold it for 2-3 seconds. Now the MACRO will change from bike 1 to bike 2 and backwards.
Which bike you are currently using is shown by the number “1” or “2” which is displayed above the temperature.