Contest hint and toy clock

I've seen some great guesses on that 80 tooth chainring contest. When I post more about Nobilette's work later today, the observant will see immediately what that the chainring in his shop is used for. It's not for a motorpaced bike, unicycle, or a bike for a tall guy. Huge Hint: It is used for something bike-like in that you sit on it and crank the pedals with your feet. I'm looking for a specific product.

Here's a useless gizmo. The time shown is U.S. Mountain Time (GMT -7). It's 60 degrees F and it's time to ride.