When you first build your trad rack you’ll probably have cams that go as small as .75 inches. That will cover you on most easier climbs but as you move up the grades you will find the need for smaller more flexible cams. While there are a lot of options on the market, for this review I’m going to check out the Black Diamond Camalot X4 cams.
Black Diamond came out with the X4 to complement their classic C4 line up. The X4’s start smaller and overlap with the smallest 4 C4 cams. They are available in .1, .2, .3 .4, .5 and .75. The 3 smallest sizes use a stacked axle which is elliptically shaped giving a wider camming range for a single axle design. The 3 biggest X4’s use a double axle like the C4 family giving an even wider expansion range. With C4 they go down to size .3 which covers from around .5-.9 inches (13.8-23.4mm). This is pretty small but the head width is still pretty wide for the size in addition to having a relatively stiff stem. The X4 addresses these issues with a narrower head width and a super flexible stem. [Read more…] about Black Diamond Camalot X4 Review