New statement of the problem
- I use the same head unit for multiple bicycles.
- Each bike is fitted with its own sensors and mounting bracket for the head unit.
- When I switch the head unit on, it asks me which bike I'm riding. Since I often ride the same bike multiple rides in a row, this is a minor inconvenience, as the selection menu starts at the last-ridden bike.
- I configured the head unit for automatic upload to an online portal. At the conclusion of a ride, the ride data are automatically uploaded.
- But I have to go to the online portal after every ride to adjust the bike for that ride, unless the ride was on the default bike (the first entered).
- Have you found a cyclometer and online portal combination that will identify the bike based on an initial selection, without having to reselect post ride?
Previous statement (to be deleted)
Uploading one's bike rides to an online portal is handy not just to keep track of one's fitness (it's a powerful incentive; acting as a reminder of the days and weeks when one has been "slacking off"), but it's also a nice reminder of the mileage for each bicycle—helping to identify, for example, when it might be prudent to check chain length.
But after an upload, I need to manually identify the bike. Otherwise a default bike is always selected.
Have you found a pair of cyclometer and online portal that enable you to upload your ride, and end up with the particular bike you selected in your cyclometer correctly saved in the online portal?
Paul H suggests this is related to the "types".
One prominent online portal, Strava, shows five types.
How many "types" are there in Garmin, Wahoo, etc? If these five types are common, that would be sufficient to support five bikes for each head unit.
Presumably this is just an identifier. For example, if you have two road bikes but no TT bike, nothing stops you from using the TT type for one of the two road bikes to distinguish it from the other.