BowFlex Dumbbells (2026): SelectTech 552 vs 1090, Fixes and Recall

BowFlex dumbbells, the SelectTech dial line, change weight with a turn of two knobs, and this research guide answers what buyers and owners search for most: how the mechanism locks, the real differences between the 552 and 1090, how to free a stuck dial using BowFlex’s own troubleshooting steps, the June 2025 CPSC recall, and when another adjustable is the better fit. Specs come from BowFlex manuals and product pages, not from our own use.

How These Picks Were Chosen

Brand guides get the same rules as everything else: listings are verified live, and duplicate color and configuration ASINs are cross-checked so one listing per product is carded. Both products here also appear in category roundups on this site — the 840 as our top adjustable kettlebell — and we disclose that rather than inventing separate winners. The comparison standard throughout is our own adjustable dumbbell roundup: SelectTech has to justify itself against machines we already recommend, or this page would say so.

1. The Standout: BowFlex SelectTech 840 Adjustable Kettlebell

Why we picked it: If SelectTech has a masterpiece, this is it. Kettlebells are the hardest test of an adjustable mechanism — swung, inverted, caught — and the 840’s dial is built for it: BowFlex’s manual says the knob turns only when the handle is fully seated, and the handle locks to the base if the knob sits between settings. We card it here and in our kettlebell roundup, openly, because it is genuinely the same recommendation rather than two manufactured ones. Trade-offs: the body is wider and squarer than a cast bell in the rack position, and the top setting will feel light to strong swingers eventually.

2. The Current Dumbbells: BowFlex Results Series SelectTech Dumbbells

Why we picked it: The Results Series carries the SelectTech idea forward: spin the dial, lift, train — the change takes seconds, which matters more than any spec when you are running drop sets or supersets at home. The honest framing: the trade-offs of the format are unchanged — composite shells, a longer overall length than fixed dumbbells, and the dial mechanism’s well-known dislike of being dropped.

Side-by-Side Comparison

Buying Considerations

The dial's strength is speed; its weakness is drops. SelectTech changes weight with one turn of each knob — that is the product. BowFlex’s manual is blunt about the weakness: do not drop the dumbbell, because impact can damage the plates or locking mechanism and let plates disengage, and dropping voids the warranty. The handle and base are not user-serviceable; repairs go through customer service. If you train hard enough to drop dumbbells, buy steel.

Length and shape are the other honest trade. Adjustable dumbbells are longer than fixed pairs at the same weight, which shows up in narrow-grip presses and can catch on the torso in some movements. Kettlebell versions are wider in the rack position. Neither is disqualifying; both are worth knowing before your first session rather than during it.

Temperature and humidity matter more than people expect. Composite shells and dial mechanisms live happier indoors than in an unheated garage that swings from freezing to humid. Our garage gym planning guide covers the climate problem generally — if your gym is a garage, that argues for steel plates and cast bells over any adjustable system.

Compare against the alternatives honestly. Our adjustable dumbbell roundup carries the direct rivals — including PowerBlock’s steel-plate selector system. SelectTech wins on change speed and the kettlebell; rivals win on durability under abuse. Both pages exist so you can pick by which trade suits your training, and we earn either way.

How Do BowFlex SelectTech Dumbbells Work?

Each dumbbell lives in a molded base tray that holds every plate. A knob on each end of the handle selects how many plates the handle picks up. According to the SelectTech 552 manual:

1. With the handle fully seated in the base, turn both knobs until the weight you want lines up with the arrow. Each setting clicks into a notch.
2. Lift the handle straight up. The selected plates come with it; the rest stay in the tray.
3. Return it straight down, perpendicular to the base, without tilting it until it clears the unselected plates.

Two safety interlocks do the work. The knobs only turn when the handle is fully seated, and if a knob is left between notches the handle locks to the base instead of lifting with partly engaged plates. The handle is symmetrical, so it can go back in either way round as long as both ends are set to the same weight. BowFlex describes the plates as polypropylene-coated steel, and the manual recommends testing the locking mechanism monthly.

Stand or floor. BowFlex’s FAQ calls the stand optional but recommended for correct positioning. Without one, the manual says to set the trays directly on the floor rather than on a bench or shelf, where a tray can tip as you lift. Either way, keep 24 in of clear space beyond your reach in every direction, as the manual specifies.

BowFlex 552 vs 1090: What Actually Differs?

Spec (per dumbbell)	SelectTech 552	SelectTech 1090
Range	5–52.5 lb	10–90 lb
Settings	15	17
Steps	2.5 lb to 25 lb, then 5 lb	5 lb throughout
Length	16.9 in	17.5 in
Parts warranty (Results Series)	2 years	3 years

Specs are from BowFlex’s Results Series product pages and the 552 manual. Three things follow from them:

• The 552 is the better light dumbbell. Its 2.5 lb steps between 5 and 25 lb suit raises, curls and rehab work, where a 5 lb jump can be a 50% increase.
• The 1090 starts at 10 lb. That is already heavy for many people’s lateral raises. Buy it for rows, presses, goblet squats and lunges above 50 lb.
• Length barely changes. The 1090 is only 0.6 in longer, so the reach to 90 lb is not paid for in a much bulkier handle. Both are longer than a fixed dumbbell at light settings, which you notice on close-grip presses.

If you are torn, ask if you will press or row more than 50 lb per hand within a year. If not, the 552 covers you with finer steps.

The 2025 Recall: Which BowFlex Dumbbells Are Affected?

On June 5, 2025 the CPSC announced a recall of about 3,844,200 BowFlex 552 and 1090 adjustable dumbbells, sold from as early as 2004 through May 2025. The hazard: weight plates can dislodge from the handle during use. BowFlex Inc., formerly Nautilus, reported 337 incidents, including 111 injuries such as concussions, abrasions, broken toes and bruising. Johnson Health Tech Trading, which sold the units from May 2024, reported 12 incidents and no injuries.

• How to check: find the model and serial number sticker on the bottom of the molded plastic tray and compare it with the serial ranges in the CPSC notice or at bowflex.com/recalls.
• If yours is affected: the CPSC says to stop using it immediately. The remedy is a refund voucher or replacement, depending on who sold it, and you return the handle and base with a prepaid label.
• Buying used: check the serial before you pay. A secondhand 552 or 1090 from the recalled ranges should not be used.

BowFlex’s SelectTech FAQ states that the dumbbells it currently sells are not involved in any recall, which is why this guide cards the current Results Series listing rather than an older 552 or 1090.

How to Fix BowFlex Dumbbells That Are Stuck

The 552 manual’s troubleshooting section covers the common jams. Work through the one that matches:

Symptom	What BowFlex says to check
Knob will not turn	Push the handle fully down into the base; the knobs only turn when it is seated. Look for debris in the base and for plates installed backward (the plate selection tongues should face away from the grip).
Handle will not come out or go back in with no plates selected	Set both knobs exactly to 5. A knob between notches locks the handle to the base by design.
Handle will not seat with plates selected	Set both ends to the same weight, or return the handle in the same orientation you lifted it. Check that the unselected plates sit in their correct slots.
Plates drop out	Stop using it. Check that all locking tabs face away from the grip and the unselected plates are in the right slots, then check the serial against the 2025 recall.

Two things not to do: do not force a knob when the handle is out of the base, and do not take the handle or base apart. The manual says repairs go through customer service, and a forced or opened mechanism is how a jam becomes a dropped plate.

Are BowFlex Dumbbells Worth It Compared With the Alternatives?

The case for SelectTech is the dial: one turn per end, labeled settings, and a tray that keeps the unused plates organized. The case against it is written in BowFlex’s own manual: no dropping, no letting the dumbbells hit each other, no push-ups on the handles, and no use outdoors or in wet locations.

Need	Better fit	Why
Fast changes, indoor room, controlled set-downs	SelectTech dial	One turn per end; labeled settings
Small steps and occasional low set-downs	PowerBlock pin system	2.5 lb micro weights; maker allows drops of about 6 in
Garage gym, drops, push-ups on the handles	Fixed rubber hex dumbbells	No mechanism to damage

Our adjustable dumbbell guide ranks the pin and spin-lock alternatives on the same criteria.

The kettlebell is the same system. The SelectTech 840 uses the same logic in a kettlebell: six settings from 8 to 40 lb, a knob that turns only when the bell is seated in its base, and the same no-drop rule in its manual. It was not part of the 2025 dumbbell recall, which named only the 552 and 1090.

So Which One Should You Buy?

Adjustable kettlebell buyers: the SelectTech 840. Six settings from 8 to 40 lb — and the same pick as our kettlebell roundup.

Fast weight changes in a small space: the Results Series dumbbells. BowFlex says its currently sold dumbbells are not part of any recall — and don’t drop them.

FAQ

Are BowFlex SelectTech dumbbells worth it?

For home training in a climate-controlled room where speed between sets matters, yes — one turn of each knob changes the weight. For garage gyms, dropped sets, or anyone who wants equipment that tolerates abuse, the steel-plate systems in our adjustable dumbbell roundup are the better buy, and we say so there too.

What breaks on SelectTech weights?

The manual names the risk: drops or forceful contact can damage the plates or the locking mechanism — dials that stop indexing, or shells that crack. Used gently they last for years; used like commercial gym dumbbells they do not. Racking them on the supplied trays rather than the floor is the single best habit.

SelectTech 552 vs the current Results Series — which should I buy?

In June 2025 the CPSC announced a recall of about 3.8 million original 552 and 1090 dumbbells because plates could come off the handle, and BowFlex says the dumbbells it currently sells are not part of any recall. The practical answer is to buy the current listing new rather than an older model secondhand — and to verify what is in the box, since bundles vary by listing.

Is the 840 kettlebell better than cast bells?

For space and range, clearly — it replaces six bells. For feel in the rack position and indifference to being dropped, cast bells still win. Many home gyms end up with the 840 for variety plus one heavy cast bell for swings, which our kettlebell roundup covers.

What is the difference between the BowFlex 552 and 1090?

The 552 adjusts from 5 to 52.5 lb in 15 settings, with 2.5 lb steps up to 25 lb. The 1090 adjusts from 10 to 90 lb in 17 settings of 5 lb each. Per BowFlex, the 552 is 16.9 in long and the 1090 is 17.5 in. Pick the 552 for finer steps at light weights and the 1090 if you need more than 50 lb per hand.

Why won't my BowFlex dumbbell come out of the base?

Usually a knob is sitting between notches, which locks the handle to the base by design. BowFlex's manual says to turn both knobs until each clicks into a setting, and to set both exactly to 5 if you want the handle out with no plates. Also check that both ends are set to the same weight.

Can you do push-ups on BowFlex dumbbells?

No. BowFlex's 552 manual says not to lean on the handles or use them to support your body, and gives push-ups as the example. Leaning on the handle loads the selector mechanism in a way it is not built for. Use push-up handles or fixed hex dumbbells for push-ups and renegade rows instead.

How do I check if my BowFlex dumbbells are recalled?

Look for the model and serial number sticker on the bottom of the molded plastic tray, then compare it with the serial ranges in the CPSC's June 2025 recall notice or at bowflex.com/recalls. The recall covers specific 552 and 1090 units. If yours matches, stop using it and contact BowFlex for the remedy.

Sources

• BowFlex — SelectTech BD552 Dumbbells Owner's Manual
• BowFlex — Results Series 552 SelectTech Dumbbells (specifications)
• BowFlex — Results Series 1090 SelectTech Dumbbells (specifications)
• BowFlex — SelectTech Adjustable Dumbbell and Weight FAQs
• CPSC — Johnson Health Tech Trading Recalls BowFlex Adjustable Dumbbells Due to Impact Hazard (2025)
• PowerBlock — Product FAQ

How We Research

Picks are researched and written by Mike Callahan based on manufacturer specifications, current Amazon listings, and patterns across verified owner reviews — particularly the negative ones. We are not a testing lab and do not claim to be; our full standard is in the editorial policy. Specifications and included accessories vary by listing, so confirm current details at the retailer before buying.

Note: The SelectTech 840 is carded both here and in our adjustable kettlebell roundup under this site’s brand-guide exception, disclosed in both places and enforced by an explicit verifier allowlist. BowFlex revises this lineup frequently and older model listings appear and disappear — confirm the current listing contents before buying. Verified on the live listings August 6, 2026.