Bicycle detail

I was on my morning commute on the Max train, Orange Line. I put my bike on the rack when I got on at the Park Ave. stop in Milwaukie at 7:05. My seat was facing away from my bike, so I wasn't able to watch it as I usually do. I checked on it as the train was approaching Portland State University, and saw that it was gone. The time and intersection above are approximate. The actual time was between 7:25 and 7:50. An important visual characteristic of my bike is that it now has a silver break on the right and a black one on the left (or it might be the reverse of that). I've attached an old picture of the bike.