These are solid in both up and down positions, no rattling on my single-cylinder thumper which surprised me. They fit on tight with a little rubber padding and don't move at all once tightened.
The main issue is the cast quality. Mine had rough edges clearly from the casting process, but I used a grinder to smooth them down and painted black.
Recommended for affordable highway pegs!
Great product for a low price. I was not expecting much for the price paid. However these did not let me down. They attached tightly and function great. I highly recommend.