I was working on my bicycle, a 2021 Domane SL5, and laid it on the ground. When I picked it up, I saw a small metal ring on the ground underneath. I don’t know for certain if the metal piece came off the bike, but what do you think? Is this a part from the bike?
I was installing a DuoTrap sensor. I thought maybe it came from the rubber grommet or part of the installation kit for the sensor but I haven’t been able to confirm; installing the sensor seemed to be fine so I’m not sure if it’s a needed part.