The Petzl Spirit is maybe the oldest and most popular sport climbing in the world. More than a decade ago, Petzl's innovative keylock design of the gate was the first to eliminate the problem of the notch getting snagged on the bolt hanger when cleaning a steep sport route. At the time it was revolutionary. Today there are many keylock carabiners out there but the Spirit remains one of the best.
The look and feel of these biners along with small details like the tiny grooves for your fingers to get a grip on when opening the gate all combine to make this one of the best biners in the world. Only the Wild Country Helium Carabiner scored higher in our test and that was just because we liked the size and lightweight of it. But if you are not obsessed on ultralight biners, then this is hard to beat. If you are looking for the best value in keylock carabiners, we would get the Black Diamond Positron./