Took my bike for a ride. 11.6 km (per the unverified bike computer) in 45 minutes. The bike worked okay, but the derailers and brakes were anything but smooth. Can probably adjust the derailers but the brakes are just a bad design and I don't know what can be done about them -- I spent several hours trying to get them to work well when I bought the bike more than fifteen years ago. But at least the brakes to work reasonably well at actually stopping me when going downhill which is something that they didn't do when I weighed 100 lb more than now.

I don't know how much actual bike riding I will do at this point. I definitely enjoyed being on a bike again, but the winter will be shutting me down pretty soon. I think I can best look forward to getting back into bike riding in the spring, hopefully at my goal weight and in good physical shape from my workout programs.