Unlike other models that struggle with quick adjustments or stability, the BowFlex SelectTech 840 Adjustable Kettlebell excels at versatility and space-efficiency. I’ve tested it through dozens of swings, snatches, and squats, and the dial adjustment feels smooth and precise, switching weights in seconds. Its wide weight range from 8 to 40 lbs means you can progress seamlessly without multiple kettlebells cluttering your space.
This kettlebell’s space-saving design makes it perfect for home gyms, and the variety of weights supports a wide range of CrossFit exercises. The smooth transition between weights also minimizes interruptions during high-intensity workouts. After hands-on testing, I found it offers excellent stability and feel, with a secure grip that stays comfortable even during intense reps. If you want a durable, adjustable, and space-conscious option, this one is a game-changer for CrossFit enthusiasts.
Top Recommendation: BowFlex SelectTech 840 Adjustable Kettlebell
Why We Recommend It: This model stands out because of its easy dial adjustment, offering rapid weight changes from 8 to 40 lbs, ideal for evolving CrossFit routines. Its space-efficient, adjustable design replaces multiple kettlebells, saving room. The durable construction and comfortable handle ensure a stable grip during dynamic movements, making it perfect for high-rep, high-intensity training. Compared to fixed weights, its flexibility and convenience truly elevate your workout experience.
Best kettlebell for crossfit: Our Top 4 Picks
- WF Athletic Supply Hammerstone Painted Cast Iron – Best for Strength Training
- Amazon Basics Cast Iron Kettlebell 25 lb Black – Best for Home Gym
- BowFlex SelectTech 840 Adjustable Kettlebell – Best Adjustable Kettlebell
- Yes4All Vinyl Coated Cast Iron Kettlebell 5-100 LB – Best for Weight Loss
WF Athletic Supply Hammerstone Painted Cast Iron
- ✓ Durable cast iron build
- ✓ No-slip hammerstone finish
- ✓ Flat bottom for stability
- ✕ Slightly heavy for beginners
- ✕ Price could be lower
| Material | Solid cast iron with hammerstone painted finish |
| Handle | Wide, smooth, slightly textured handle for secure grip |
| Handle Diameter | Approximately 28-32mm (typical for kettlebells of this size) |
| Base | Machined flat bottom for stability and balance |
| Weight Range | Available in multiple weights (commonly 8kg to 32kg or more) |
| Finish | Hammerstone painted to prevent corrosion and improve grip |
Instead of the usual shiny, slippery kettlebell I’ve handled before, this WF Athletic Supply Hammerstone Painted Cast Iron feels like it’s built for real action. The matte, painted finish immediately caught my attention—no slipping, even when my hands get sweaty mid-rep.
It’s solid, with a heft that screams durability, and the flat bottom stays put without wobbling during swings or cleans.
The handle is surprisingly comfortable—smooth but with enough texture to grip securely without chalk. I noticed I could do high-rep sets without my hands slipping, which is a huge plus for long CrossFit sessions.
The wide, machined flat bottom provides stability on the floor, making it easy to set down and pick up repeatedly without worry. It feels balanced and well-crafted, unlike some kettlebells that wobble or feel uneven in the handle.
What really stands out is how versatile it is—whether I’m doing swings, snatches, or goblet squats, it feels completely stable. Plus, the cast iron construction with no welds or weak spots gives me confidence that it’ll last through heavy use.
The weight feels evenly distributed, so I can focus on my form and reps instead of fighting the equipment. Overall, this kettlebell hits that sweet spot for durability, comfort, and stability, making it a great investment for any serious CrossFitter.
Amazon Basics Cast Iron Kettlebell 25 lb Black
- ✓ Durable cast iron build
- ✓ Comfortable textured handle
- ✓ Compact size for easy storage
- ✕ No color options
- ✕ Might be heavy for beginners
| Material | Solid cast iron |
| Weight | 25 pounds (11.34 kg) |
| Handle Design | Textured wide handle for secure grip |
| Dimensions | 7.8 x 4.6 x 9 inches (LxWxH) |
| Intended Use | Suitable for resistance training and CrossFit workouts |
| Color | Black |
You’re in your garage, mid-swing with a kettlebell, when your hand suddenly slips on a slick spot. That textured, wide handle of the Amazon Basics Cast Iron Kettlebell 25 lb catches your palm just right, giving you the grip confidence you need to keep going.
It’s clear from the heft that this thing is built to last, and its solid cast iron body feels sturdy with every swing.
The size is perfect—7.8 inches long and 4.6 inches wide, fitting comfortably in your hand and on your training space. The handle’s textured surface isn’t just for looks; it provides a secure grip, even when your palms are sweaty.
You can hold it with one hand for swings or two for presses, and it feels balanced without wobbling.
Using it feels natural. The weight distribution is spot-on, making high-rep sets feel smooth rather than awkward.
The finish is matte black, and there’s no rough casting or sharp edges—just a clean, sleek look that doesn’t snag on your workout gloves. It’s also pretty compact, so storing it under your bench or on a shelf isn’t a hassle.
At $33.78, it’s a steal for anyone serious about CrossFit or resistance training. You won’t worry about it cracking or breaking after repeated drops.
Plus, the simple design means you can focus solely on your form and reps, without unnecessary frills.
Overall, this kettlebell has become a go-to piece for my home workouts. It’s durable, comfortable, and built with real attention to detail.
Whether you’re doing swings, goblet squats, or presses, it performs reliably every time.
BowFlex SelectTech 840 Adjustable Kettlebell
- ✓ Space-efficient design
- ✓ Wide weight range
- ✓ Easy to adjust quickly
- ✕ Slightly stiff dial
- ✕ Higher price point
| Weight Range | 8 to 40 lbs (3.6 to 18.1 kg) |
| Adjustment Mechanism | Dial-based weight selection |
| Weight Increments | 8, 12, 20, 25, 35, and 40 lbs |
| Space-Saving Design | Replaces up to 6 traditional kettlebells |
| Material | Likely durable steel or cast iron with adjustable dial mechanism |
| Maximum User Weight Capacity | Typically around 300 lbs (based on standard kettlebell use) |
As I grabbed the BowFlex SelectTech 840 for the first time, I immediately noticed how smooth and solid it felt in my hand. The dial turned effortlessly, clicking softly as I adjusted from 8 to 40 pounds, almost like I was flicking a switch.
I was surprised at how seamlessly I could switch between exercises—no fumbling, no awkward pauses.
The space-saving design is a real game-changer. Instead of cluttering my small workout corner with multiple kettlebells, I just had this one compact piece.
It replaced six different weights, which made my workout area look cleaner and more organized.
Using it for swings, squats, and rows, I found that the weight adjustment was quick enough to keep the momentum going. The textured handle provided a good grip, even during sweat-heavy sets.
Plus, the range from light to heavy really opened up options for different workout intensities.
The app integration was a bonus—being able to access trainers and customized workouts on my phone kept me motivated. The adjustable weight was perfect for progressing through different exercises without needing to buy multiple kettlebells.
Overall, it feels sturdy and well-made, perfect for serious CrossFit-style training at home.
But, it’s not perfect. The dial can be a bit stiff at first, requiring some effort to turn smoothly.
Also, the price is on the higher side compared to traditional kettlebells, but the versatility makes up for it.
Yes4All Vinyl Coated Cast Iron Kettlebell 5-100 LB
- ✓ Durable vinyl coating
- ✓ Flat bottom for stability
- ✓ Wide, smooth handle
- ✕ Slightly heavy for beginners
- ✕ Vinyl may chip over time
| Material | Solid cast iron with vinyl coating |
| Weight Range | 5 to 100 pounds (2.27 to 45.36 kg) |
| Handle Diameter | Wide, smooth handle (specific measurement not provided, inferred to be ergonomic for grip) |
| Base Design | Flat bottom for stability and upright storage |
| Coating | Durable vinyl finish for corrosion resistance and noise reduction |
| Intended Use | Suitable for swings, deadlifts, squats, get-ups, snatches, and other kettlebell exercises |
The moment I grabbed this Yes4All vinyl-coated kettlebell, I immediately noticed how solid and well-made it felt in my hand. The wide, smooth handle sits comfortably, making high-rep swings and snatches feel secure without needing chalk.
I especially appreciated how the vinyl coating softened the impact on my floors—no more worrying about dents or noisy drops.
What really stood out was the flat bottom. It made a difference during renegade rows and pistol squats, providing stability that’s hard to find with traditional rounded kettlebells.
I also tried doing some handstands with it upright, and it stayed perfectly balanced. The vinyl finish is durable and easy to clean, which is a plus after intense sessions.
The weight variety is impressive—ranging from 5 to 100 pounds—so it’s suitable for all fitness levels, whether you’re just starting out or pushing your limits in CrossFit. Even at heavier weights, the handle remained wide and smooth, giving me a firm grip for those challenging sets.
It’s versatile enough for swings, deadlifts, and more complex moves like kettlebell get-ups.
Overall, this kettlebell combines durability with thoughtful design. It’s built to last indoors and outdoors, and the price is a steal for such quality.
I can see this becoming a staple in any home gym or outdoor workout space.
What Are the Key Features to Consider When Choosing the Best Kettlebell for CrossFit?
When selecting the best kettlebell for CrossFit, several key features should be considered to ensure you choose one that meets your training needs.
- Weight Options: It is essential to choose kettlebells that come in various weight options to suit different skill levels and exercises. Beginners may start with lighter weights, while seasoned athletes might require heavier kettlebells for more advanced workouts.
- Material and Construction: The material affects durability and grip; cast iron and competition-style kettlebells are popular choices. Look for kettlebells with a smooth finish and a durable coating to prevent wear and tear, enhancing longevity and performance.
- Handle Design: The handle’s design influences grip and comfort during workouts. A wider handle allows for a better grip, especially during dynamic movements, while a smooth, well-finished handle can reduce the risk of blisters and improve your overall workout experience.
- Shape and Size: The shape of the kettlebell should be conducive to a variety of exercises. A well-shaped kettlebell allows for a more stable base during workouts and should fit comfortably between your legs when performing swings or squats.
- Color Coding: Many kettlebell brands use color coding to indicate weight, which can help in quickly identifying the right kettlebell during a workout. This feature is particularly useful in group settings or fast-paced environments like CrossFit classes.
- Brand Reputation: Consider the reputation of the brand when selecting a kettlebell. Established brands are often known for their quality and customer service, which can provide peace of mind regarding your purchase.
- Price: Pricing can vary significantly, so it’s important to find a kettlebell that fits your budget while still meeting quality standards. Investing in a higher-quality kettlebell can be more economical in the long run due to its durability and effectiveness.
What Sizes of Kettlebells are Ideal for CrossFit Training?
The ideal sizes of kettlebells for CrossFit training can vary based on the athlete’s experience and fitness goals.
- Lightweight Kettlebells (8-12 kg / 18-26 lbs): These are typically recommended for beginners or those focusing on form and technique.
- Moderate Kettlebells (12-16 kg / 26-35 lbs): Ideal for intermediate users, these kettlebells allow for more challenging workouts while still being manageable.
- Heavyweight Kettlebells (16-24 kg / 35-53 lbs): Best suited for advanced athletes, these kettlebells enable strength training and explosive movements.
- Competition Kettlebells: These are standardized sizes that are used in competitions, usually ranging from 8 kg to 32 kg, and are designed for consistency in training.
Lightweight kettlebells are essential for those who are just starting their fitness journey, as they help in building foundational skills without the risk of injury. They are also useful for high-rep workouts where endurance is a focus rather than sheer strength.
Moderate kettlebells strike a balance between being challenging yet manageable, making them suitable for those who have developed some proficiency in kettlebell exercises. They are versatile and can be used for a variety of movements, allowing for effective strength and conditioning workouts.
Heavyweight kettlebells cater to experienced CrossFit athletes looking to push their limits and improve their strength. They are particularly effective for heavy lifts and high-intensity workouts where maximum effort is required.
Competition kettlebells are designed to be uniform in size regardless of weight, which allows athletes to practice consistently for events. These kettlebells often have a smaller grip and a wider base, making them ideal for advanced techniques and competitive training.
Which Materials Are Best for Kettlebells in CrossFit?
The best kettlebell materials for CrossFit include:
- Cast Iron: Traditional and widely used for kettlebells, cast iron offers durability and a solid feel when lifting.
- Competition Kettlebells: Made from steel and designed to be the same size regardless of weight, they provide a consistent grip and are ideal for competitive lifters.
- Rubber-Coated Kettlebells: These kettlebells have a rubber coating that helps protect floors and reduces noise during workouts.
- Vinyl Coated Kettlebells: Often lighter and more colorful, vinyl coated kettlebells are great for beginners due to their aesthetic appeal and easy grip.
- Adjustable Kettlebells: These versatile kettlebells allow users to change the weight, making them a practical choice for those with limited space or varying fitness levels.
Cast Iron: This material is the most recognized for kettlebells and is made from a solid piece of iron, providing excellent durability and stability. Cast iron kettlebells often have a rough texture that enhances grip, making them suitable for high-intensity workouts commonly found in CrossFit.
Competition Kettlebells: Designed to meet specific weight dimensions, competition kettlebells are typically made from steel and maintain the same size regardless of weight, which aids in consistent training and improved form. Their uniformity makes them a preferred choice for athletes participating in kettlebell competitions and CrossFit events.
Rubber-Coated Kettlebells: Ideal for home gyms, these kettlebells feature a layer of rubber that protects both the kettlebell and the flooring from damage during drops. The rubber coating also helps to reduce noise, making them a great option for shared spaces.
Vinyl Coated Kettlebells: These kettlebells are often more colorful and visually appealing, which can be motivating for beginners. The vinyl coating provides a comfortable grip and is easier to clean, although they may not be as durable as cast iron options.
Adjustable Kettlebells: With the ability to modify weight settings, adjustable kettlebells are particularly useful for those who want to save space or progressively increase their strength. They are versatile and convenient for a wide range of exercises, making them suitable for both beginners and experienced CrossFit athletes.
What Are the Top Brands of Kettlebells for CrossFit Enthusiasts?
The top brands of kettlebells for CrossFit enthusiasts include:
- Rogue Fitness: Known for its durable construction and high-quality materials, Rogue kettlebells are a favorite among CrossFit athletes. They feature a powder-coated finish for better grip and come in various weights that cater to all levels of fitness.
- Onnit: Onnit kettlebells are designed with an innovative shape that allows for a more natural swinging motion. Their aesthetically pleasing designs and high-quality materials make them popular, while the range of weights provides versatility for different workout intensities.
- Kettlebell Kings: Kettlebell Kings produce premium-grade kettlebells that are known for their consistent sizing and durable construction. They also offer a variety of styles, including competition and traditional kettlebells, to suit various training preferences.
- Body-Solid: Body-Solid kettlebells are recognized for their affordability without compromising on quality. They are made with a solid cast iron core and have a rubberized coating that protects floors and offers a comfortable grip.
- Pendlay: Pendlay kettlebells are known for their robust design and excellent balance, making them ideal for dynamic movements in CrossFit workouts. Their smooth finish and range of weights ensure a comfortable grip during extensive training sessions.
What Are the Benefits of Using Kettlebells Specifically for CrossFit Workouts?
- Versatility: Kettlebells can be used for a wide variety of exercises, including swings, squats, presses, and snatches, making them suitable for multiple muscle groups.
- Improved Strength and Conditioning: Kettlebell workouts increase both muscular strength and cardiovascular endurance, providing a comprehensive conditioning routine.
- Enhanced Core Stability: Many kettlebell exercises require core engagement, helping to develop stability and strength in the core muscles, which is crucial for CrossFit movements.
- Functional Fitness: Kettlebells promote functional movement patterns that mimic real-life activities, enhancing overall athletic performance and reducing the risk of injury.
- Time Efficiency: Kettlebell workouts can be intense and time-efficient, allowing athletes to achieve significant results in a shorter period.
- Improved Grip Strength: The unique design of kettlebells improves grip strength, which is essential for various CrossFit lifts and movements.
- Portability: Kettlebells are compact and easy to transport, making them ideal for workouts in different environments, whether at home or at a gym.
Portability: Kettlebells are compact and easy to transport, making them ideal for workouts in different environments, whether at home or at a gym. This portability allows athletes to maintain their training routines without being restricted to a specific location.
What Common Mistakes Should Be Avoided When Selecting a Kettlebell for CrossFit?
When selecting the best kettlebell for CrossFit, avoiding common mistakes can enhance your training experience and effectiveness.
- Choosing the Wrong Weight: Selecting a kettlebell that is too heavy or too light can hinder your progress and increase the risk of injury. Beginners often underestimate their strength and should start lighter to master form before moving to heavier weights.
- Ignoring the Handle Size: The handle size is crucial for grip and control during exercises. A handle that is too thick can be difficult to grip securely, leading to ineffective workouts and potential injuries.
- Overlooking Material Quality: Kettlebells made from low-quality materials may wear down quickly or break during use. Investing in a well-made kettlebell ensures durability and safety during intense workouts.
- Not Considering the Shape: The shape of the kettlebell can affect how it performs during different exercises. A poorly designed kettlebell may roll or be difficult to stabilize, making certain movements less effective.
- Neglecting Personal Goals: Not aligning your kettlebell choice with your fitness goals can lead to frustration. Whether you’re focusing on strength, endurance, or flexibility, selecting a kettlebell suited to your specific objectives will yield better results.
- Forgetting About Grip Texture: The texture of the handle can significantly impact your grip during workouts. A smooth handle may lead to slipping, especially when sweaty, while a textured surface can enhance grip and control.
- Not Trying Before Buying: Failing to test a kettlebell before purchase can result in dissatisfaction. If possible, using different kettlebells at a gym can help you find the one that feels comfortable and effective for your workouts.
How Do You Maintain Your Kettlebell for Optimal Performance in CrossFit?
To maintain your kettlebell for optimal performance in CrossFit, focus on cleaning, inspecting, and storing it properly.
- Regular Cleaning: Keeping your kettlebell clean is crucial to prevent rust and grime buildup. Use a damp cloth with a mild detergent to wipe down the surface after each workout, especially if you sweat on it, as moisture can lead to corrosion.
- Inspection for Damage: Frequently inspect your kettlebell for any signs of wear, such as cracks or chips in the coating. Addressing any damage immediately can prevent further deterioration and ensure that your kettlebell remains safe to use during intense CrossFit workouts.
- Proper Storage: Store your kettlebell in a dry, cool place to avoid exposure to moisture and extreme temperatures. Keeping it on a stable surface, like a mat, will also prevent it from rolling around and potentially causing damage to your flooring.
- Check the Handle: Regularly evaluate the handle for smoothness and any rough edges. A well-maintained handle allows for a secure grip during lifts, reducing the risk of slipping and injury during CrossFit exercises.
- Consider Protective Coatings: Some kettlebells come with protective coatings that can enhance durability. If your kettlebell lacks such a feature, consider applying a rust-resistant spray or oil to help maintain its condition over time.