Video Cartridge Bicycle Trainer

This excercise program from ExerVision was supposed to be connected to a special bike or interface for a bike (most probably connected to the left joystick port) and was programmed by two persons. The circuit board is inside a Video Chess cartridge and underneath the homemade front label is a white sticker titled Bike Trainer and dated 3-6-85. The screen shows the BPM, MPH, RPM and CPM of the person on the bike. The idea was that the user would speed up (peddle faster) and then ease up (peddle slower) in order to match the graph line on the bottom of the screen. This would give the user a balanced exercise experience. Unfortunately, without the bike or interface it's hard to figure out how this was supposed to work. It's unknown if ExerVision actually submitted their work to any companies or if the program got further than this proof of concept cartridge.