Bowflex Selecttech 840 Kettlebell
Last updated: October 24, 2026
Quick Answer
The Bowflex Selecttech 840 Kettlebell is an adjustable kettlebell that swaps six separate kettlebells for one unit, adjusting from 8 lbs to 40 lbs with a turn of a dial. It is a solid pick for home gym owners who want compact storage and one bell that scales with strength, though it costs more than a basic cast iron kettlebell and feels bulkier mid-swing. This Bowflex SelectTech 840 kettlebell review covers pricing, performance, and who should skip it.
Key Takeaways
- The Bowflex SelectTech 840 adjusts in six increments between 8 and 40 lbs, replacing six individual kettlebells.
- It typically sells in the $150 to $200 range depending on retailer and season, cheaper than buying six separate steel bells.
- The dial mechanism is the main failure point reviewers mention; occasional sticking happens if debris gets into the base.
- Compared with a fixed kettlebell, the SelectTech 840 trades a touch of swing feel for major space savings and versatility.
- It pairs naturally with Bowflex SelectTech dumbbells, the Bowflex Max Trainer, and other home gym equipment for a full setup.
- Beginners generally find it easier to progress with than buying a full rack of weights, but very light or very heavy specialists may want a dedicated kettlebell instead.
Bowflex SelectTech 840 on Amazon US.
UK Shoppers Can: Check Pricing and Availability Here.
What Is the Bowflex SelectTech 840 Kettlebell and How Does It Work
The Bowflex SelectTech 840 kettlebell is a single adjustable kettlebell built around a dial that locks internal weight plates into the housing, letting one bell cover a range most people use six separate kettlebells for. You rotate the dial, lift the handle, and the correct plates lock in automatically.
This design mirrors the logic behind Bowflex SelectTech dumbbells, just reshaped into a kettlebell horn and base.
Instead of swapping plates by hand, you select a weight on the dial, and the selector pins inside the base grab the correct internal plates.
The rest stay locked in the base, out of the way. Bowflex calls this the SelectTech system, and it is the same engineering family behind the Bowflex SelectTech 552 dumbbells and the Bowflex SelectTech 1090 dumbbells.
Functionally, the kettlebell works like any fixed-weight bell once you’ve set your weight: swing, rack, carry, or press it. The difference is entirely in the base, which houses the stacked plates and dial.
Bowflex SelectTech 840 Price and Where to Buy
The Bowflex SelectTech 840 generally retails between $150 and $200 as of late 2026, though pricing shifts with seasonal sales on bowflex.com and major retailers.
That price covers six kettlebell weights in one unit, which usually works out cheaper than buying six individual cast iron bells of comparable quality.
Availability has been consistent through 2026 on Amazon, Dick’s Sporting Goods, and the official Bowflex site, with occasional stock gaps during fourth-quarter fitness sales. If you’re shopping in the US, you can check current stock and pricing here:
Bowflex SelectTech 840 on Amazon US.
UK Shoppers Can: Check Pricing and Availability Here.
A few buying notes:
- Bundles with the SelectTech 552 dumbbells sometimes offer better per-pound value.
- Bowflex’s own site occasionally runs direct discounts not matched elsewhere.
- Shipping weight is near 40 lbs, so factor in delivery costs for bulkier retailers.
How Many Pounds Does the Bowflex SelectTech 840 Go Up To
The Bowflex SelectTech 840 tops out at 40 lbs and adjusts down to 8 lbs across six weight settings: 8, 12, 20, 25, 35, and 40 lbs.
That range covers most swing, clean, and carry work for intermediate lifters, though it falls short for advanced kettlebell sport athletes chasing 48 lbs or 53 lbs bells.
For context, a 40 lbs top weight is enough for most two-handed swings and goblet squats, but single-arm snatches at that weight will challenge even experienced lifters.
If your program calls for anything heavier than 40 lbs, you’ll need a separate fixed kettlebell to supplement the SelectTech 840.
Bowflex SelectTech 840 vs Regular Kettlebell: Which Is Better
A regular, fixed-weight kettlebell generally feels better mid-swing because its mass sits lower and its shape is more compact, while the Bowflex SelectTech 840 wins on storage, cost over time, and convenience.
Choose the SelectTech 840 if you train at home with limited space; choose a traditional kettlebell if you want the purest swing feel or train above 40 lbs.
If you already own a few Yes4All kettlebells or a basic cast iron set, you may not need the SelectTech 840 unless you’re trying to save closet space.
Is the Bowflex SelectTech 840 Worth the Money
For most home gym users who lack space for a full kettlebell rack, the Bowflex SelectTech 840 is worth the money because it replaces six kettlebells with one compact tool at a lower total cost than buying each weight separately.
It’s less worth it if you only ever train at one weight.
Reviewers across fitness publications in 2026 generally agree the SelectTech 840 earns its price for apartment dwellers and anyone building a minimalist home gym alongside a Bowflex Max Trainer or treadmill.
The math is straightforward: six separate kettlebells at 8, 12, 20, 25, 35, and 40 lbs would easily cost more and take up five times the floor space.
That said, if your strength training plan is simple and narrow, a single fixed kettlebell from brands like Titan might serve you just as well for less money.
Bowflex SelectTech 840 Pros and Cons
The Bowflex SelectTech 840 kettlebells biggest strength is space efficiency, and its biggest weakness is the dial mechanism, which some owners report sticking over time. Weigh both before buying.
The pros:
- Six weights in one compact unit, from 8 to 40 lbs
- Saves significant floor and shelf space versus a full rack
- Matches the Bowflex SelectTech ecosystem, including dumbbells
- Reasonably quick to adjust between sets
- Good value compared to buying six individual bells
The cons:
- Base is bulkier than a traditional kettlebell, altering swing feel slightly
- Dial can stick if dust or moisture gets inside
- Max weight caps at 40 lbs, too light for advanced lifters
- Higher upfront cost than a single basic kettlebell
- Repair options are limited once out of warranty
Is the Bowflex SelectTech 840 Good for Beginners
Yes, the Bowflex SelectTech 840 is good for beginners because it lets new lifters start light at 8 lbs and increase weight gradually without buying new equipment each time strength improves. This progressive setup suits anyone easing into kettlebell training at home.
Beginners often struggle with knowing what weight to buy first. The SelectTech 840 removes that guesswork; you start at 8 lbs, learn proper swing mechanics, and dial up as your hip hinge and grip strength improve.
Bowflex SelectTech 840 on Amazon US.
UK Shoppers Can: Check Pricing and Availability Here.
This is a smarter entry point than guessing with a single BalanceFrom kettlebell and hoping the weight fits.
Can You Use the Bowflex SelectTech 840 for CrossFit Training
The Bowflex SelectTech 840 works for general conditioning and accessory kettlebell work in a CrossFit-style routine, but its 40 lbs max and bulkier base make it a poor substitute for competition kettlebells used in high-rep WODs. Use it for warmups, swings, and carries; use a fixed bell for max-effort metcons.
CrossFit workouts often call for heavier loads or very fast, repetitive swings where a slimmer traditional kettlebell outperforms an adjustable one.
For home-based CrossFit-adjacent training, pairing the SelectTech 840 with adjustable kettlebell workouts for weight loss still makes sense for most non-competitive lifters.
Does the SelectTech 840 Kettlebell Dial Break or Get Stuck
The dial on the SelectTech 840 can get stuck if dust, sweat, or moisture builds up inside the base, though this is not a universal problem and many owners report years of smooth use. Keeping the base clean and dry prevents most sticking issues.
Owner manuals from Bowflex recommend storing the kettlebell indoors, away from humidity, and wiping the base periodically. If your dial won’t turn, see the troubleshooting answer in the FAQ section below.
What Kettlebells Are Similar to the Bowflex SelectTech 840
Other adjustable kettlebells on the market use similar dial or pin-based systems, including models from Titan Fitness and Bells of Steel, though none copy the exact SelectTech mechanism.
These alternatives are worth comparing on price and max weight before buying.
If you want options beyond Bowflex, check out the Titan Adjustable Kettlebell Review or browse our Best Adjustable Kettlebell roundup, which compares several brands side by side, including weight range and build quality differences.
Who Should Not Buy the Bowflex SelectTech 840 Kettlebell
Advanced kettlebell athletes who need weights above 40 lbs, and lifters who prioritize a slim, classic swing feel over convenience, should skip the SelectTech 840. A dedicated cast iron kettlebell will serve those goals better.
If your training already includes heavy single-arm snatches or kettlebell sport work, look at fixed-weight options instead, or supplement your SelectTech 840 with a heavier traditional bell for max lifts.
Does the SelectTech 840 Feel Like a Real Kettlebell Swing
The SelectTech 840 feels close to a real kettlebell swing but slightly different because its base is wider and its center of mass sits a bit higher than a classic cast iron bell.
Most users adapt within a few sessions, though purists notice the difference immediately.
Reviewers on fitness forums and YouTube in 2026 generally describe the swing as “close enough” for home training, noting the horn shape and grip feel authentic even if the base silhouette is bulkier.
Common Problems With Adjustable Kettlebells Like the SelectTech
The most common problems with adjustable kettlebells like the SelectTech 840 are dial sticking, occasional rattling from internal plates, and a learning curve adjusting grip around a bulkier base. These issues are usually minor and fixable with basic maintenance.
- Dial sticking: usually dust or moisture related, fixed by cleaning
- Plate rattle: common at lighter settings, rarely affects performance
- Grip adjustment: takes a few sessions to feel natural
- Storage weight: at nearly 40 lbs max, moving it around requires care
How to Adjust the Weight on the Bowflex SelectTech 840
To adjust the weight, place the kettlebell on a flat surface, turn the dial to your target weight, lift the handle straight up, and confirm the base plates have locked in before starting your set. This process takes roughly 10 to 15 seconds once you’re familiar with it.
Always lift straight up rather than at an angle, since tilting can cause the selector pins to misalign. Bowflex’s manual recommends checking the dial display matches your intended weight before every set, especially when training with kids or beginners nearby.
Bowflex SelectTech 840 on Amazon US.
UK Shoppers Can: Check Pricing and Availability Here.
FAQ
My Bowflex kettlebell dial won’t turn. What could be causing this?
A stuck dial is usually caused by dust, grit, or moisture inside the base mechanism, or by the kettlebell sitting at an odd angle when you try to adjust it. Set it flat on a hard surface, wipe the base clean, and try turning the dial again with firm, even pressure.
Is a Bowflex Max trainer worth it?
The Bowflex Max Trainer is worth it for users who want a low-impact cardio machine that blends elliptical and stepper motion, especially when paired with JRNY digital fitness coaching. It suits home gym owners seeking joint-friendly cardio alongside strength tools like the SelectTech 840.
Which adjustable kettlebell is better, Titan or Bells of Steel?
Titan’s adjustable kettlebell is generally cheaper with a simpler pin system, while Bells of Steel offers a smoother dial-style adjustment closer to the Bowflex SelectTech design. Choose Titan for budget, Bells of Steel for a more refined adjustment feel.
What will doing 100 kettlebell swings a day do?
Doing 100 kettlebell swings daily can build hip and glute strength, improve grip endurance, and raise your heart rate for light cardio benefit over several weeks. Results depend on weight used, form quality, and consistency, and should be paired with proper recovery.
Conclusion
The Bowflex SelectTech 840 kettlebell earns its spot in a home gym built around space efficiency and progressive strength training.
It won’t replace a full kettlebell rack for advanced lifters chasing heavy single-arm work, but for most people building strength from 8 lbs up to 40 lbs, it’s a smart, space-saving tool that pairs naturally with Bowflex SelectTech dumbbells and other home gym equipment.
For more training ideas once it arrives, browse our guide to adjustable kettlebell exercises for toning or compare it further against other models in our adjustable kettlebell brands comparison.
