Dualbell
Dualbell Superset (4-Pack)- Max Setup
Dualbell Superset (4-Pack)- Max Setup
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Go heavier than your heaviest dumbbell!
The Superset uses four Dualbells so you can load two dumbbells per side — reaching weights your single pair of dumbbells can't. Combine a 50 and a 30 for 80 lbs per side. A 50 and a 5 for 55. Progress in almost any increment, using the dumbbells you already own.
This is the four-adapter setup for lifters who want to keep adding weight. Want collars included? Get the Superset + Collars bundle.
Quick facts:
- Stack two dumbbells per side to go heavier
- Four adapters — combined capacity up to 500 lbs
- Rated for dumbbells up to 125 lbs each
- Fits any standard 1" (25mm) bar
- Patented and made in the USA
- Includes 4 Dualbells, 2 spacers, and a storage bag
What's included:
- 4 Dualbells
- 2 spacers
- Drawstring storage bag
- Workout chart to get you started
(Bar and collars sold separately. Add the Superset + Collars bundle to get collars included.)
Why lifters choose the Superset:
- Go beyond your heaviest dumbbell. Stack two per side to hit weights a single dumbbell pair can't reach — and progress in small increments by mixing sizes.
- Built for heavy lifts. Zytel® Nylon 66, third-party stress tested to 1,900 lbs of force. Rated for dumbbells up to 125 lbs each — four adapters give you a combined 500 lb capacity.
- Rotates on the bar. Natural self-balancing motion across presses, squats, deadlifts, and rows.
- Fits what you own. Works with most hex, rubber-coated, and popular adjustable dumbbells.
- Stores anywhere. Everything tucks onto a shelf or in a closet. No rack needed.
- Quick to swap. On in seconds, off in seconds. No tools.
Will it fit your setup?
Dumbbells: Handles at least 4.25" (108mm) long and up to 1.38" (35mm) diameter — most standard and adjustable dumbbells, including Bowflex, Nuobell, Core Fitness, CAP, and NordicTrack.
Bar: Any standard 1" (25mm) bar. (Not for 2" Olympic bars.) You'll also need collars — add the Superset + Collars bundle, or use your own. Inexpensive options we like: CAP Barbell 60" Solid Standard Bar and FitVid Standard barbell.
The Dualbell Superset is built for lifters who don't want to stop adding weight. With four adapters, you load two dumbbells per side — going heavier than any single pair of dumbbells allows, and progressing in almost any increment by mixing dumbbell sizes.
Clamp the Dualbells around your dumbbell handles, add the spacers, slide onto a standard 1" bar, and secure. In seconds you've got a heavy barbell setup ready for squats, presses, deadlifts, and rows — using the dumbbells you already own instead of a rack of plates.
Each adapter is made from Zytel® Nylon 66, third-party stress tested to 1,900 lbs of force, and rated for dumbbells up to 125 lbs each — a combined 500 lb capacity across the four. Dualbell rotates smoothly on the bar for a natural, balanced motion, and the whole setup stores in a drawer when you're done.
Patented and made in the USA. Plates optional.
Materials
Materials
Dualbell is built of strong and durable materials.
Body- Nylon 66
Hinge pin- Delrin
Padded insert- rubber
Spacer (included in Superset)- Nylon 66
Shipping & Returns
Shipping & Returns
- We aim to ship quickly, within 1 business day of your order being placed.
*For international delivery, please contact us before ordering to confirm shipping rates and availability to your country.
Dimensions
Dimensions
Dualbell works with a standard 1" diameter bar.
Dualbell is compatible with dumbbell handles with a:
- Minimum length of 4.25", 108mm,
-Maximum diameter of 1.38", 35mm.
-Spacer measures 4"in length
Care Instructions
Care Instructions
See product literature for more information

they work great. easy to use.
This is the perfect addition to my home gym. Such a great design and is flexible with adding weight to your work-outs as you get stronger, without having to invest in more plates or dumbbells. I would recommend this innovative product to anyone serious about strength training. Awesome.
Recently, I introduced the Dualbell into my workouts, and it's been a game-changer! It's so user-friendly and intuitive that I looked forward to my workout sessions even more. I especially love how versatile it is – while I'm a regular dumbbell enthusiast, the Dualbell truly shines when I use it for my bar squats. It's become a staple in my routine, finding its place 2-3 times a week. Funny enough, I often wondered why I hadn’t come across such a gem on Amazon before. If you're on the fence, give it a try; it’s a delightful addition to any fitness arsenal!
I am really enjoying my Dualbell adapters. With the limited weights I have they allow me to increase what I can put on my barbells. They even work with my recent acquisition a set of Trulap adjustable dumbbells that have a larger grip than most dumbbells which give me even more adjustability on my barbells. Really liking them, thanks.
They have amazing customer service! Chatted with me about to ensure it would fit my adjustable dumbbell.
This product is perfect for increasing the versatility of my apartment room home gym. It’s better than the Jayflex hyperbell since it allows rotation of the weight and allows you to use many different standard barbell types and allows me to use to sets of dumbbells for higher weight!
