This rowing machine is around 25 years old. I recently replaced the hydraulics, the seat rollers, and the arm bushings with parts from a similar — but seemingly unused — rower that I found out on the curb with the trash on Greenwich Street in New York City. The rescued machine did not have the electronic counter and timer like the machine in the picture.
Recumbent stationary bike, 30:37 minutes, 8.8 miles, 244 calories
Hydraulic rowing machine, 30:39 minutes, 1491 strokes