Adjustable Dumbbells

Brand: Bowflex
Manufacturer: Nautilus, Inc.
Model: 001-4551
EAN: 0490820005505
Category: Gadgets & Tools
List Price: $399.00
Price: $349.00  (127 customer reviews)
You Save: $50 (13%)
Dimension: 10.00 x 10.00 x 17.50 inches
Shipping Wt: 99.21 pounds. FREE Shipping (Details)
Availability: In Stock.
Average Rating: 3.8 out of 5 stars
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Product Description

Just like all Bowflex SelectTech dumbbells, with just the turn of a dial you can automatically change your resistance from 10 lbs. all the way up to 90 lbs. of weight. No more picking up 17 different sets of dumbbells to give you the results you want!


  • Includes 1-Year JRNY Membership ($149 value; auto renews when trial ends unless cancelled 48 hours prior to trial end date)
  • 10 - 90 lbs per Adjustable Dumbbell
  • Easy-to-Use Selection Dial
  • 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, and 90 lbs.
  • Functional, full-body strength for your legs, back, chest, abs, shoulders and arms
  • On-demand, full body strength classes now available on the JRNY app (JRNY Membership Required)
  • Dimensions: 17.5" L x 9.5" W x 10" H each (44.4 x 24.2 x 25.3 cm)

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Top Reviews

New Bowflex 1090 dumbbells have metal weight plate locking tabs
by Amazon Customer (5 out of 5 stars)
July 15, 2018

I received my Bowflex 1090 dumbbells last week and I'm happy to report that both dumbbells contain weight plate locking tabs that are metal. Hopefully, this will prevent the plates from slipping off the dumbbells. I also tested the locking mechanism function, as the owner's manual suggested, and found no problems with both dumbbells.

I will update this post if I encounter any problems.
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Everything I hoped they'd be.
by Apollinaire (5 out of 5 stars)
September 20, 2017

Two common complaints in the reviews and my reactions: 1) the dumbbells are longer than normal dumbbells. Yes, they are, but the only time I have to think about it is when doing incline bicep curls. It's a little more difficult to do incline bicep curls (other than hammer curls, which make no difference). Still, not annoying enough to care. 2) the handle shape and knurl take getting used to. Okay, so the handles are more square than round or oval shaped, and the knurl is on two sides of the square rather than all the way around. I use gloves when I lift that have padding, so not only do I not feel much of a difference, I'd say I like the handles slightly more than dumbbells with thinner handles. I'm over 6ft tall and have large-ish hands, so these have worked out great for me.

The ease of changing the weights on these things is amazing. I just can't get over how much I enjoy using them.

I chose to buy the stand, and I can't imagine not having it. The height of the stand and the angle that it creates so that you can lower the dumbbells into the trays easily is well worth the money. Yes, all these things together get expensive, which is the drawback. I really tried to convince myself I could do without the stand, and I'm really glad I ended up buying it.

My remaining question is about long-term quality. They seem very well made, but I will use them for everything and see if the quality persists. If they need repair, I'll return to this review and update.

Wanted to add two things: One, it is true that occasionally, when you dial a certain weight, the plates don't click in immediately, and when you go to pick the dumbbell up, all 90 lbs are on it. You simply have to select a different weight, then select the weight you want again (in other words, just move the selector to a different weight and then back and that takes care of the issue). This unblocks whatever problem there was. I'd say this happens less than 5% of the time, so it's not a big deal. Second, sometimes, when you put the dumbbell back in the plate container, you have to put it back in at the proper angle or else it doesn't slide in perfectly and kind of catches on the plates. I've noticed this with the 40 lbs setting. This is not difficult to get used to, but after a demanding set when your arms are tired, when it happens the first time, you might find it annoying. You get used to this very fast (you learn how to slide the handle down to avoid this) and it isn't a problem.

Another thing to add: When you select 90 lbs, the plastic tray does not detach from the dumbbells perfectly. this is another reason to buy the stand, because on the stand, the plastic tray is strapped to the stand and you can pull the dumbbell free. If the plastic tray wasn't strapped down to something, it would be really annoying when it came up with the dumbbell.
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Plastic pieces broke. I was fairly warned by the reviewers on here
by Ashotjan (1 out of 5 stars)
February 9, 2019

Metal: a solid material that is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity (e.g., iron, gold, silver, copper, and aluminum, and alloys such as brass and steel).

There's some free advice, Nautilus. Plastic doesn't work for weights this size. Two of the holders broke on mine after only 8 months of use. I imagine this is a pretty big blunder on their part and so they're not willing to come out and admit it. But for heaven's sake the 520's got it right, so they go cheap on the heavier weights? smh
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Weight randomly fell off and almost injured me
by AvgConsumer (2 out of 5 stars)
January 31, 2017

Had these dumbbells for almost 10 years now. They proved to be very convenient for a home gym workout session with less clutter. For the years I had them I had no issues until today. One of the heavy plates slipped out of the bar while I was attempting to do barbell squats and nearly smashed my foot. It was a close call and lucky it didn't fall on me during my chest exercise! I have never dropped the weights and the weights don't wiggle around or seem loose at all. Be cautious if you had these for a long period of time.

Called Bowflex to see what they can do for me. After being connected to customer service, we found out that one of the discs had a crack causing the weight to fall off. Their solution is to purchase a new handle as they do not sell individual parts. The cost of a new handle is about $145 after tax and shipping. My main concern is that the warranty for the "NEW" handle is only 30 days. Not a year or 5 years. 30 days. To me it shows me that they do not have confidence in their product and is proven that this product is bound to fail. For long term and for own safety, I would recommend to look for another product.
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New Metal Tab Design Comparable to 552 Design.
by Brian S. (5 out of 5 stars)
June 21, 2018

Happy to report that the 1090s I received yesterday from Amazon have the updated design that the 552s have (metal locking tab on the plates rather than the older "molded" tab that would wear down and cause issues with plate retention).

I expect this to solve nearly all the issues that other reviewers complained about, but time will tell. Have not had a chance to put them through the wringer yet, obviously. Will report back if anything bad occurs with them.
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since I examined the plates when I first opened them and everything was fine. I called Bowflex/Nauti
by CJ (1 out of 5 stars)
February 29, 2016



I bought these on Craiglist in their original sealed package.

The fourth time I used them I was doing a benchpress when the largest plate fell off and hit me on the side of the head giving me a black eye.

I found that the tab on the plate that fell off that connects it to the handle had broken (see pics). This must have happened during one of the three prior workouts, since I examined the plates when I first opened them and everything was fine.

I called Bowflex/Nautilus to buy a replacement plate. However they would not sell me the part since I bought the dumbbells second hand. I wasn't asking for a replacement set of dumbbells, I wasn't even asking for a free replacement part, I was asking to buy a new plate.

I understand why they wouldn't cover these under warranty since I bought them second hand, but I was asking for them to be replaced. I just wanted to buy a new plate.

Instead they sent me a new pair of the smaller 552 dumbbells, which seems odd. My only guess is that the 1090s are prone to breaking and causing injury and they do not want to be liable.

Very disappointing / frustrating after spending $600+
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Huge design flaw - nothing like the 552
by EricTX (1 out of 5 stars)
February 3, 2017

I've had these for about a year bought from Amazon. I also have the lighter 552 set. With the 552s, I've never had a problem with them. However the 1090 have a very important design difference. If you look at my first picture, you will see that the 552 plate has an actual metal tab that the handle locks into to secure the weight. The other two pictures show the molded tabs on the plates of the 1090s. You can see in my year of personal use, that the tabs on these two plates have worn down, and the handle will no longer pick them up. Meaning those plates are useless. I have bought one replacement plate (high cost) already, but now that I have examined the other tabs I see they are wearing down as well. So basically I spent over $600 on dumbbells that are completely unsafe. I did call Bowflex customer service and was told this is part of normal wear and tear.

Do NOT, I repeat do NOT but these dumbbells, even if you are impressed with the 552s. Total was of money.
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For the amount of money, these should be better quality and not a potential accident waiting to happ
by itohburrito (1 out of 5 stars)
December 20, 2015

We've had the original, lighter Bowflex dummbell set for a couple years now and my boyfriend was ready to move up to something heavier. The lighter set is amazing, we've never had any problems with it. However, this heavier set has been giving us problems ever since we got it. When we first started using it, one of the dumbbells dropped a plate (luckily, not on a foot or worse-- what happened if it fell off while doing bench press or above the head shoulder exercises?). So, we called customer service and ran through the motions to get a new barbell handle delivered to us. Now, that same problem is happening. We aren't sure if it's the same barbell or not, but this is obviously a bad problem.

We compared the two sets to each other and we noticed that the plates on the lighter set have a metal notch for the plates to grip, whereas the heavier set is made of the same material that the plate is made of, smooth plastic. This is obviously the source of the problem.

We do not drop the weights, when my boyfriend is using them I spot him and help them down to the ground so this is not user error.

They should make a better quality product and customer service will be hearing from us again. I paid way too much money for this faulty product- which is a shame because we like our original set and I even bought a nice Bowflex stand for this set.
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Excellent home gym product.
by RS (5 out of 5 stars)
January 19, 2019

Not sure about the negative reviews, I think those can probably be attributed to the user rather than the product. I've had two of these 1090s and have used them religiously for many years without a single mishap. They've gotten me strong and bigger, and I never had an injury or a malfunction. Just take care of them. Don't slam the dumbbells around (as I notice other people tend to do when they come over and wanna play around with these weights) , go gently and easy when you dial the weight, and don't try to pick up more weight than you can properly handle, and these guys WILL hold together and last you a long time. The shape and size takes a little getting used to, especially if you're accustomed to other dumbbells, but these are excellent and convenient pieces of equipment that will allow you to lift fairly heavy and they barely take up any space.

They go up to 90lbs, which might not seem like much compared to heavy barbell lifting, especially once you get a good momentum of gains going, but if you get to the point where you're lifting 90lbs on shoulder press and chest flyes, for reps, you're going to have gained some serious size and strength. Only downside is, you can't squat and deadlift with these, or really do much for lower body at all. Also, it's pretty limited for back exercises other than dumbbell rows, so I'd recommend a hex/trap bar and pull-up bar for a more complete and smaller home gym (unless you're going all out and getting a barbell set and squat rack). Also, you'll need an adjustable inclined bench to use with these dumbbells (I bought the cheapest one i could find and it's still holding up several years later). A little expensive for all this equipment, but worth it, and very convenient. (I spent $800 total over time for all the equipment I mentioned above and it'll practically last you for life). Plus, you're way more likely to stick to your work out routine if you can do it at home instead of traveling to the gym and dealing with that circus every day.
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by SkynetHome (1 out of 5 stars)
January 23, 2019

PLEASE SAVE YOUR MONEY. I have been using these for two months being careful not to drop them as the manufacturer recommends. Which is difficult in and of itself if you plan to push yourself at all. Last night I had one standing on its end waiting to do Pull Overs when it fell over under its own weight and the handle cracked. It no long holds one of the plates. I got online to see if anyone else has had a problem and saw all of the negative reviews. I will contact Bowflex tomorrow but if other reviewers stories are accurate then bowflex won't be of much help. AMAZON PLEASE REMOVE THESE FROM YOUR INVENTORY UNTIL BOWFLEX ADDRESSES THIS DESIGN FLAW!!!

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