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Updated
Pros
  • Ergonomic design
  • Durable
  • Easy to use
  • Prevents cross-loading
  • Strong and lightweight
  • Secure screwgate
Cons
  • Heavier than some models
  • Horn may catch on gear
Bottom Line
The Black Diamond RockLock Carabiner is a robust and dependable locking carabiner perfect for a variety of climbing scenarios. Its ergonomic design and ease of use make it a favorite among climbers.
The DMM Rhino Carabiner is a unique and innovative locking carabiner designed to minimize cross-loading risk. Its distinctive horn feature helps keep rope systems properly aligned.
Material
Aluminum
Aluminum
Weight
85g
72g
Gate Opening
21mm
21mm
Major Axis Strength
24 kN
27 kN
Minor Axis Strength
7 kN
9 kN
Open Gate Strength
7 kN
7 kN
Height
-
1 inches
Length
-
5 inches
Weight
-
0.1984160358 pounds
Width
-
4 inches
Part Number
-
A547
Model
-
DM0536

When it comes to climbing and securing equipment, locking carabiners are a crucial component of any setup. Two popular options on the market are the Black Diamond RockLock Carabiner and the DMM Rhino Carabiner. In this comparison, we'll delve into the features, benefits, and drawbacks of each product to help you decide which one best suits your needs.

Design and Construction

The Black Diamond RockLock Carabiner is a sturdy, hot-forged carabiner with a sleek design. It features a large gate opening and a smooth, rounded shape that makes it easy to clip and unclip ropes and equipment. The RockLock has a robust construction, with a strength rating of 24 kN (5,395 lbf) along the major axis.

In contrast, the DMM Rhino Carabiner boasts a unique, horn-shaped design that provides exceptional strength and durability. The Rhino features a slightly smaller gate opening than the RockLock, but its compact shape makes it ideal for use in tight spaces. With a strength rating of 27 kN (6,076 lbf) along the major axis, the Rhino is one of the strongest carabiners on the market.

Locking Mechanism

Both carabiners feature reliable locking mechanisms that ensure secure connections. The Black Diamond RockLock has a screw-locking mechanism that requires a simple twist to lock and unlock. This mechanism is easy to use, even with gloved hands, and provides a high level of security against accidental opening.

The DMM Rhino, on the other hand, features a proprietary locking mechanism called the "Rhino Twist-Lock." This mechanism uses a combination of twisting and pushing motions to lock and unlock the carabiner. While it may take some getting used to, the Rhino Twist-Lock provides an exceptionally high level of security against accidental opening.

Keylock Nose

One notable feature that sets the DMM Rhino apart from the Black Diamond RockLock is its keylock nose design. The keylock nose eliminates the need for a hook or notch on the carabiner's nose, reducing the risk of rope snagging and making it easier to clip and unclip equipment.

In contrast, the Black Diamond RockLock features a traditional hooked nose design, which can sometimes catch on ropes or equipment. While this is not a major issue, it's worth considering if you prioritize smooth, snag-free clipping and unclipping.

Weight and Portability

When it comes to weight and portability, both carabiners are relatively compact and lightweight. The Black Diamond RockLock weighs in at 85g (3 oz), while the DMM Rhino is slightly heavier at 94g (3.3 oz). While neither carabiner is excessively heavy, the RockLock's lighter weight may be beneficial for climbers who prioritize minimalism.

Conclusion

In conclusion, both the Black Diamond RockLock Carabiner and the DMM Rhino Carabiner are high-quality locking carabiners that excel in different areas. The RockLock offers a smooth, rounded design and a reliable screw-locking mechanism, making it an excellent choice for general climbing use. The Rhino, on the other hand, boasts exceptional strength, a unique horn-shaped design, and a proprietary locking mechanism that provides unparalleled security.

When choosing between these two carabiners, consider your specific needs and preferences. If you prioritize ease of use, smooth clipping, and a compact design, the Black Diamond RockLock may be the better choice. However, if you require exceptional strength, a high level of security, and a unique keylock nose design, the DMM Rhino is an excellent option.

Ultimately, both carabiners are reliable and trustworthy choices for climbers who demand the best from their equipment. By considering your specific needs and weighing the pros and cons of each product, you can make an informed decision and choose the locking carabiner that's right for you.