CMI Figure 8’s Review

The CMI Figure 8’s: Final Thoughts from Me

For anyone navigating the world of climbing and rappelling, the right descent device is paramount. After years spent in varied environments—from dusty workshops to wind-whipped outdoor crags—I’ve learned that reliability in gear isn’t a luxury; it’s a necessity. The CMI Figure 8’s, crafted by CMI, a name I’ve come to trust for robust equipment, entered my gear closet to address a specific need: a dependable, no-nonsense descender for both recreational climbing and more demanding rescue scenarios. I’d heard whispers about their solid construction and simple effectiveness, especially compared to some of the more “innovative” but potentially less durable options that have hit the market.

My immediate impression upon unboxing was one of solid craftsmanship. The aluminum alloy felt substantial, and the hardcoat finish promised resilience. It immediately felt like a tool designed to be used, not just admired. I’d been considering a few other brands, some with lighter profiles and others with more intricate locking mechanisms, but the sheer simplicity and apparent bomb-proof nature of these CMI devices won out. The first feeling was one of quiet confidence; this was a piece of equipment that looked ready to do its job, and do it well, without fuss.

Real-World Testing: Putting CMI Figure 8’s to the Test

First Use Experience

My initial tests took place on a local sport climbing route, a place where repeated rappels are the norm. I also integrated it into a simulated rescue drill scenario, which involved more prolonged use and varied rope diameters. The device performed admirably, feeding rope smoothly during rappels, even on longer runs.

Conditions were varied, including a light drizzle one afternoon and direct sun on another. The CMI Figure 8’s showed no signs of corrosion or degradation, and the hardcoat finish resisted minor scuffs from contact with rock. Handling the device was straightforward; as an experienced user, the “figure 8” style is second nature. There was no significant learning curve, making it immediately accessible for anyone familiar with basic belay/rappel techniques.

One minor surprise was how well it handled a slightly fatter, older rescue rope I had on hand, which can sometimes be a challenge for smaller devices. It gripped and controlled the thicker diameter with surprising ease, adding to my confidence in its versatility.

Extended Use & Reliability

Over several months, these CMI devices have become my go-to for most rappelling and belaying needs. They’ve been stuffed into packs, hung from harnesses, and used on countless descents. The hardcoated 6061-T6 aluminum alloy has proven its worth, showing only the faintest cosmetic marks despite frequent use.

Durability has been exceptional. I haven’t encountered any cracks, deformation, or noticeable performance drops. The rope glides smoothly through the ears, and the breaking strength of 10,000 lbs provides a comforting margin of safety for all my climbing and rescue applications. Maintenance is blessedly simple: a quick wipe-down with a damp cloth after muddy excursions is usually all that’s needed.

Compared to some lighter-weight aluminum carabiners or plastic-bodied belay devices I’ve used in the past, these figure eights feel exceptionally robust. While some high-end devices might offer more intricate features, the straightforward reliability and durability of this CMI offering stand out, especially considering their price point.

Breaking Down the Features of CMI Figure 8’s

Specifications

The CMI Figure 8’s are constructed from a 6061-T6 Aluminum Alloy, a material chosen for its excellent strength-to-weight ratio and corrosion resistance. This is further enhanced by a hardcoat finish, which significantly boosts its durability and resistance to abrasion, crucial for gear that’s constantly interacting with ropes and carabiners. The stated breaking strength is an impressive 10,000 lb, offering substantial security for a wide range of applications.

One version, referred to as the “Figure 8”, measures 13.5 x 7.5 cm and weighs 117 g, boasting a break strength of 8000+ lbs. The larger “Rescue 8” variant is sized at 17 x 15.5 cm, tipping the scales at 221 g, and features a higher break strength of 10,000+ lbs. These dimensions and weights are important considerations for packability and how the device feels in your hand during use; the larger Rescue 8 offers a more substantial grip and potentially better heat dissipation on long rappels.

Performance & Functionality

The primary function of the CMI Figure 8’s is as a belay and rappel device, and in this capacity, it excels. Its straightforward design ensures predictable performance, allowing for smooth rope feeding during rappels and secure braking when belaying. The manual catch belay type is standard for this device, meaning control is entirely dependent on the user’s technique.

The strengths lie in its absolute simplicity and robustness. It does exactly what it’s supposed to do, without any unnecessary complications. A potential weakness, shared by all figure eights, is the tendency to twist the rope on rappel, especially if not managed carefully. However, this is more a matter of user technique than a flaw in the device itself. For its intended applications, it meets and often exceeds expectations, providing reliable functionality at a very competitive price.

Design & Ergonomics

The build quality of the CMI Figure 8’s is immediately apparent. The 6061-T6 Aluminum Alloy gives it a solid, substantial feel, and the hardcoat finish adds a layer of professional polish while promising long-term resilience. The form factor is classic, designed for effective friction and control on the rope.

Ergonomically, it’s a familiar and comfortable tool for anyone experienced with this type of device. The larger “Rescue 8” offers a more generous grip, which can be beneficial during prolonged rappels or when wearing gloves. The distinct “figure 8” shape is intuitive, with clearly defined ears for rope insertion and a larger loop for carabiner attachment. There are no complex buttons or levers, making its operation straightforward even in stressful situations.

Durability & Maintenance

Based on my experience and the materials used, the CMI Figure 8’s are built for longevity. For typical climbing and rappelling use, these devices are designed to last for many years, potentially decades, of active service. The hardcoated aluminum is highly resistant to the abrasions and impacts that are common in outdoor environments.

Maintenance is minimal. After use, particularly in wet or dirty conditions, a quick rinse and dry are sufficient. I haven’t noticed any specific failure points or inherent weaknesses in its design, other than the general wear and tear expected from any piece of climbing hardware subjected to friction and load. The robust construction suggests it can handle significant abuse.

Accessories and Customization Options

The CMI Figure 8’s themselves are the core product and do not typically come with extensive accessories. However, their design is compatible with standard climbing ropes and locking carabiners, which are essential complementary gear. The breaking strength of 10,000 lb is a key specification, but it relies on pairing it with appropriately rated carabiners and ropes.

There are no inherent customization options for the device itself, as its form is dictated by its function. However, the availability of both a standard “Figure 8” and a larger “Rescue 8” provides a choice based on user preference and intended application. This allows users to select the size that best suits their grip, the rope diameters they commonly use, and their need for heat dissipation.

Pros and Cons of CMI Figure 8’s

Who Should Buy CMI Figure 8’s?

The CMI Figure 8’s are an ideal choice for a wide range of climbers, from beginners learning the ropes of rappelling to experienced mountaineers and rescue professionals. Their robust construction and 10,000 lb breaking strength make them suitable for anyone prioritizing durability and reliability over ultra-lightweight features. They are particularly well-suited for situations where gear is likely to see hard use, such as in canyoneering, extensive multi-pitch climbing, or regular training exercises.

Anyone seeking a straightforward, dependable rappel device that won’t break the bank should strongly consider these. Those who are accustomed to the traditional figure-eight technique will find them immediately familiar and effective. However, ultralight backpackers or climbers solely focused on shedding every gram might prefer a lighter, more modern belay device. For those needing a reliable workhorse that can handle frequent use and potentially rougher treatment, these CMI units are an excellent investment.

Conclusion on CMI Figure 8’s

The CMI Figure 8’s stand as a testament to timeless design and solid engineering. They are not the flashiest or the lightest pieces of gear on the market, but their strength lies in their unwavering reliability, robust construction, and exceptional durability. The 6061-T6 Aluminum Alloy and hardcoat finish ensure that these devices can handle the rigors of frequent use in demanding environments.

For their price, the value proposition is outstanding. You get a piece of equipment that offers both safety and longevity, a combination that is often costly. I can wholeheartedly recommend the CMI Figure 8’s to anyone looking for a trustworthy belay and rappel device, especially the larger “Rescue 8” model for those who appreciate a bit more mass and control during extended rappels. They are a dependable tool that will serve you well on countless adventures.