Lighter and smaller than a conventional pulley block. Instead of rolling on a pulley sheave, the active line with a ferrule merely slides on the inside smooth surface of the ring.
This looks like a bad idea to me. I do not believe this achieves any advantage for you compared to a traditional pulley. There is so much friction and heat buildup. It may provide a slight advantage if the ropes were rigged to the ring opposite to the demonstration though.
Looks like snatch rings are a very good idea, after all!
Прикольно.
А можно просто через шакл, тотже эффект
На сайте производителя такой способ крайне не рекомендуют
This looks like a bad idea to me. I do not believe this achieves any advantage for you compared to a traditional pulley. There is so much friction and heat buildup. It may provide a slight advantage if the ropes were rigged to the ring opposite to the demonstration though.
Why not show this on a actual pull, say a 7% incline or more? Flat pulls mean nothing.