Black DiamondCamalot X4

The largest expansion range of any small cam on the market.

If you're looking to add some small cam sizes to your rack, the new Black Diamond Camalot X4 is the way to go. The 4-lobed device utilizes embedded cam springs to create a narrow head width while the stacked and double axle technology provides the largest expansion range of any small cam available, ultimately providing more placement options than ever before. Plus, aluminum protection beads on the stem increase durability without compromising flexibility.

  • Stacked axle technology (sizes .1, .2, .3) and double axle technology (sizes .4, .5, .75) allows for a huge expansion range
  • Cam springs embedded in the lobes create a narrower head width than the original Camalot, allowing for wider range of placement options
  • Aluminum protection beads around the cable increase durability without limiting flexibility
  • Hot-forged trigger and the symmetric swage improve handling characteristics
  • Slung with color-coded Dyneema slings for easy size identification
  • Reviews
  • Q & A


  • Familiarity: I've used it several times

I snagged a few of these because I always find myself reaching for a smaller cam to put in places I don't really want to put my hands and leaving good cracks for my fingers instead. These cams are slim and lightweight so they don't add too much to your rack. Plus, the heads aren't as wide, which gives you a more versatile range of places you can stick them, like littler pockets and such. Big fan, there's a reason they're a classic.

Confidence Inspiring

  • Familiarity: I've used it once or twice and have initial impressions

I have been putting together my first trad rack over the past month or two, and I ended up grabbing a 0.3 and 0.4 to round out my rack sizes. Though I havent fallen on my X4s yet, I have placed the 0.4 a couple times and each times it gives me more psychological protection when I need it on those tiny cracks. Definitely a more niche use for me, but they are great for any climber needing good pro in vertical or diagonal cracks or those who send it really hard.

X4's are AMAZING

  • Familiarity: I've put it through the wringer

I have the 0.3-0.5 X4's and they are amazing. The grey (.4) is my favorite and fits everywhere! I have whipped on it twice now and it didn't budge. Awesome small cams!! Can't been 'em. Will be adding more to the rack when I can afford it.

I love these

  • Familiarity: I've used it several times

They’ll hold a good fall

Thanks for the review Kristin!

The Cam you will reach for

    The X4 cams are the cams I reach for the most in my set. I have triples in all sizes.

    Small and strong.

    • Familiarity: I've used it several times

    These cams are one of my go-to trad pieces, I never leave the ground without at least one or two of them. They are small, finger sized pro for protecting those scary moves where you're hanging on only your fingers, and let's be honest, those happen even on easier climbs. I place these guys when I just need some extra courage to go forward. Plus, with the metal necks, these guys can take a beating and still stay in great shape. A must have for your rack.

    Great small cams!

      The x4s are great small cams. They are dual axle from .4-.75 and the protected stem is pretty comparable to the Alien design.
      I don't use the red or the yellow that much, but the others are a terrific alternative to the c4 size that they overlap.
      In terms of strength, I think the x4s are similar to other micro cams - the smallest are only rated to 5 kn or so but the others (with two axles) are rated to 10 kn.

      Love the Skinny Head

        I have been using my X4 set everywhere! Because they just seem to fit everywhere! I have pulled my C4 off my belt to only find the slot is too small and then find that the X4 fits. I don't feel any less secure on the X4s because of the smaller head. Some say the .75 head is a little floppy on the stem but I don't think its that bad, its just what you expect from a single stem cam like this.

        Perfect for the small stuff

        • Familiarity: I've used it several times

        I like the X4s a lot in the smaller sizes, where the flex does not inhibit placing them with one hand. If I could, I would rack these exclusively, but I have a Frankenrack, so I often find myself saving these for the tricky horizontal placements where they really excel, and using a different cam in simpler placements.

        Thanks for contributing to our community Matt. It's really helpful.


        • Familiarity: I've put it through the wringer

        This is the perfect small cam package to add to your trad rack they will definitely have there place. The extremely flexible stem is perfect for horizontal placements and gives me more confidence then a C4 in the same spot. These cams have nice trigger action feel great in your hands and have an amazing range. I find my self placing the X4s more often then the same size C4 when climbing in Big and Little Cotton Wood Canyon. I highly recommend these to anyone looking for smaller size cams. They are worth the extra money. If you have any questions building your rack hit me up any time!


        Hands down my favorite

          I love these things. I have a complete set and wish I had more. They are a full lobe maybe more compact than the c4. They place better in horizontal or weird cracks.I reach for these first when looking at my rack. I trust them with my lie and they have never let me down. I place the .2 a ton.

          Love the X4s

          • Familiarity: I've put it through the wringer

          These are my favorite small cams. Had the blue and the yellow and recently added the red and the grey. They are easy to place, have a great range, and have held solid on a couple of decent falls. The flexible stem is nice for horizontal placements, and I like the action much better than comparable size TCUs or C3s.

          My favorite small stuff.

            All the small things.... True care, truth brings.... I'll take, one .1.... whip on it/best trip.... Always, I know.... You'll be, on my rack... Clipping, placing, and taking.

            Say it ain't so, I will not fall.... Peel my hands off, save my ass cam.... on, on, on, on..... on, on, on, on, on, on, on belay.

            Just a great cam

            • Familiarity: I've used it several times

            Stem that bends for better horizontal placement. Check. Great range from either dual or stacked axles. Check. Durable head and stem with armor. Check. Fantastic cams.

            necessary purchase

            • Familiarity: I've put it through the wringer

            You'd think who cares what's the difference? The difference is these fit when C4's don't. Don't believe the reviews try them out and you'll get more.

            Have brutally whipped on .1 and it's still going strong.

            Best Cams around

            • Familiarity: I've put it through the wringer

            Just buy them. all these reviews, need I say anymore about how awesome these cams are! buy them

            Great, but buy them on sale

            • Familiarity: I've used it several times

            At the recommendation of a local gear shop, I opted for the .3 and .4 (blue and grey) in X4s rather then the same size/color in C4s. And I would make the same recommendation to anyone else, it was good advice. At least for the .3/.4, they have a slightly better range than the C4 counterpart-- several times I've had a .4 C4 not fit as well in a crack as the .4 X4 did. And the flexible stem is great if you have to place in a horizontal crack.


            • Familiarity: I've used it several times

            I have a full set of the X4s and they are great, confidence inspiring , and easy to place. I haven't had any issues with the bigger green size being too floppy. Its more floppy than the c4 but I didn't find it to be significantly harder to place and the flexible stem makes up for it. Great gear.

            Keep you @$$ off the ground!

              When the name of the game is small pro - the X4 is the way to go. Small head profile, bite of a "softish" metal, and the protected cable make this my reach to piece for the tight small spots for bomber pro!

              Caption - triple up before the tight traverse on Stump the Stars LCC

              Keep you @$$ off the ground!

              Confidence inspiring cam

              • Familiarity: I've used it several times

              Great little cam, always looking for ways to use my X4s. They feel super sturdy, especially with the aluminum triggers. Aside from price, I'm not sure why you'd get a C4 in the same size, since these are narrower, and will fit more placements, and just seem super robust. I've got 0.2 -> 0.5, and love them all. I am glad that the size ranges correspond to the same ranges for C4, since it makes it easier to grab the right cam (unlike the C3s, which have a totally different numbering scheme). Only X4 I'm not sure I'll pick up is the 0.75 (green), as it seems a little floppy compared to the C4 version.

              Hey Aaron,
              I've got the green, and have never noticed any floppiness or trouble placing it compared to the green C4. And occasionally I've found a funky placement that feels better with the flexible stem.