Metolius Ultralight Master Cams

The Ultralights are the only cams in this review that sport single axles. Having one axle lets the Ultralights achieve smaller sizes than dual-axle models—better for small cracks and weight savings. Of course having one axle gives the Master Cams less range per unit than dual-axle cams, meaning you need more cams to fill your rack for a given range. And so goes the decades-old debate: Is it better to carry more pieces of pro or fewer pieces that fit a wider range?