The photo was from a site that no longer seems to be up. The pedal on the right, measuring at 15.7mm is the same size that the pedal on my indoor spin bike uses and I want to use standard 9/16 threaded pedals instead.
Has anyone come across this size??? Do adapters exist to step up standard 9/16 to 15.7mm?
Very interesting! Now that I see it, I can't unsee it! That's pretty interesting, but I think finding a solution is either going to be too expensive or just not worth the effort. Maybe I'll see if I can just remove the crank arms and put on a standard pair!