Clutch Pucks

I am going to need those shortly, the guy I sold my bike to will not pedal. How much of those should be showing? In other words how much should be sticking out about 1/16"

I still have 30 squares left. Can't guarantee they'll work for you. They're thinner than the round ones. I can measure them and get back to you.

Did you become his mechanic.
I charge if I am the mechanic, but usually help others to do their work.

He just dissapeared I have not seen him around for awhile. I guess he found some somewhere. I tried to help him because he was my neighbors friend.