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Best Seller
AdaptaBELL Adjustable Dumbbells
Adjustable Dumbbells

ADAPTABELL™

Sold as a Pair, Overhang Free Design
In Stock, Arrives
Works with All Weight Plates
Perfect For Home or Travel
Style: MAX [140kg | 300lbs]
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The AdaptaBELL™ is a plate-loaded adjustable dumbbell system sold as a pair. Compatible with both 28mm (Standard) and 50mm (Olympic) weight plates, giving you full flexibility with plates you already own. Choose PRO (plastic, 140 lb max) for a lightweight start or MAX (metal, 300 lb max) for serious lifting. Weights not included.
  • Bicep curls — standing & seated
  • Shoulder press — overhead pressing
  • Bench press — dumbbell chest work
  • Rows — single-arm & bent-over
  • Lunges — weighted walking lunges
  • Deadlifts — Romanian & sumo
  • Goblet squats — front-loaded squats
  • Tricep extensions — overhead & kickbacks
  • PRO — Plastic, 1.8 lbs each, 65 kg / 140 lb max
  • MAX — Metal, 1.8 lbs each, 140 kg / 300 lb max
  • Compatibility — 28mm Standard & 50mm Olympic plates
  • Sold as — A pair (2 dumbbells)
  • Weights — Not included
  • Free shipping on orders over $300
  • 100-day risk-free trial — full refund
  • Worldwide shipping to 50+ countries
Deep Dive

SEE IT IN ACTION

A full breakdown of the AdaptaBELL — design, features, and how it works

HOLDS 300LBS

Don't limit your potential with light weights.

KNURLED HANDLE

High-quality materials to handle intense workouts.

PORTABLE & LIGHT

A great addition to your home gym or on-the-go workouts.

FITS MOST PLATES

Works with both standard and Olympic plates.

"Compact, efficient and versatile, the adaptabells by Kensui Fitness is the perfect addition to your home gym. The unique plate-loaded and flat-end dumbbell works with any weight plate and is adjustable up to 300lbs."

Introducing

ADAPTA-BELLS

Knurled Handles.
Hold ups to 300lbs.
Assembled in USA.
Perfect for Home Gyms.

Hotspot Image
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Lined with UHMW:
Protects Your Plates
+
Knurled Handle:
For optimal grip
+
Aircraft-grade Aluminum:
Strong and Durable
+
Rubber Lined:
Prevents Slippage
Expert Approved

Trusted By Industry Experts

Coop Mitchell

Founder & Lead Reviewer

Garage Gym Reviews

"I think these are killer value. You're getting a much better value than spin locks."

In that goal of trying to minimize space and maximize your dinero, these really hit the spot.

Nick Nilson

Nick Nilson

Founder of Fitstep.com

Fitstep.com

"Bottom line, these things are awesome. Some of the best home gym equipment you can get."

They solve one of your biggest problems with adjustable dumbbells... the post that sticks out past the plates.

Mark Strange

Mark Strange

Founder, Muscle Building Shorts

YouTube

"I have no fear of them loosening up on me. Nice flat edges on the side."

I also like dumbbells that have a nice flat side so I can put them on my knees for temporary support.

Angus Logan

Angus Logan

Fitness Reviewer

AngusLogan.co.uk

"Dumbbells are super versatile. This is a cool addition. 33 quid absolute bargain!"

Pretty happy with these, a good purchase.

4.9★ Rating
481+ Reviews
89% 5-Star
200K+ Athletes

Choose Your Model

PRO vs MAX

VS
Best Seller
AdjustaBELL PRO

ADAPTABELL PRO

Lightweight & Portable

Peg Length 9cm
Handle Diameter 34mm
Material Nylon Fiberglass
Weight Capacity 140lbs

Price per pair

$49

Free shipping over $100

Heavy Duty
AdjustaBELL MAX

ADAPTABELL MAX

Maximum Strength

Peg Length 10.75cm
Handle Diameter 38mm
Material Aluminum Alloy
Weight Capacity 300lbs

Price per pair

$149

Free shipping over $100

No overhang dumbbell design
Revolutionary Design

NO OVERHANG

Place on your knees for shoulder press, pain-free. Full range of motion for curls, rows, and bench press. No plates digging into your thighs or chest.

  • Pain-free shoulder pressing
  • Unrestricted movement patterns
  • Rest on thighs between sets
Heavy loaded AdaptaBELL
Maximum Strength

GO HEAVY

Don't limit your potential with light dumbbells. The AdaptaBELL MAX safely holds up to 300 lbs with knurled aluminum handles built for serious lifting.

  • 300 lb max capacity (MAX)
  • Knurled handles for secure grip
  • Won't loosen during use
Universal plate compatibility
Universal Compatibility

ONE SIZE FITS ALL

Works with both 28mm (Standard) and 50mm (Olympic) weight plates. Use the plates you already own from any brand — CAP, Rogue, Yes4All, or any other.

  • Standard + Olympic compatible
  • Works with any brand plates
  • No proprietary plates needed
Travel portable dumbbells
Travel Ready

TRAIN ANYWHERE

Hotel and condo gyms never have dumbbells over 50 lbs. Throw AdaptaBELLs in your backpack, use the gym's plates, and lift as heavy as you need.

  • Fits in a backpack or suitcase
  • Use any gym's weight plates
  • Never miss a workout
Comparison

Why ADAPTABELL?

See how AdaptaBELL stacks up against traditional dumbbell options

Compare Options
Traditional Dumbbells

Traditional
Dumbbell Set

Adjustable Dumbbell

Adjustable
Dumbbell #1

Adjustable Dumbbell 2

Adjustable
Dumbbell #2

Best Choice
AdaptaBELL

ADAPTABELL

No Overhang
Compact / Portable
Eco-Friendly
Microloading
Cost (USD)
$1,000+

Full Set

$39-300

Per Pair

$700+

Per Pair

$49-149

Complete System

Why ADAPTABELL?

Traditional
Dumbbell

Adjustable Dumbbell
#1

Adjustable
Dumbbell
#2

ADAPTA-BELL

No Overhang

Compact/Portable

Environmental

Microloading

Cost (USD)

1,000+

39-300

700+

49-149

Unlock Your Potential

EXERCISES YOU CAN FINALLY DO

Movements that were previously impossible with traditional adjustable dumbbells

Bench Press
Chest

BENCH PRESS

Full range of motion, no plates in the way

Rows
Back

ROWS

Complete the movement without obstruction

Bicep Curls
Biceps

BICEP CURLS

Full supination without plate interference

Tricep Extensions
Triceps

TRICEP EXTENSIONS

Overhead movements without hitting your back

Shoulder Press
Shoulders

SHOULDER PRESS

Rest on knees between sets, pain-free

Goblet Squat
Legs

GOBLET SQUAT

Hold comfortably at chest level without bulk

ADAPTABELL™ FAQs

What exercises can you do?

ADAPTABELL™ dumbbells are perfect for a complete workout routine:

  • Upper Body: Bicep curls, shoulder presses, chest presses, rows, tricep extensions
  • Lower Body: Goblet squats, lunges, step-ups, calf raises
  • Core: Russian twists, weighted sit-ups, side bends
  • Full Body: Thrusters, man makers, Turkish get-ups

The adjustable weight system allows you to progress gradually and safely across all exercises.

What are the Adaptabells made of?

ADAPTABELL™ dumbbells are constructed with premium materials:

  • Core: High-grade ADC12 construction for maximum durability
  • Coating: Powder-coated finish for corrosion resistance
  • Grips: Knurled handles for secure grip
  • Locking Mechanism: Precision-engineered aluminum components

All materials are tested to withstand heavy daily use and meet commercial gym standards.

Do the dumbbells loosen?

No, they won't loosen during use. ADAPTABELL™ features our patented SecureLock™ technology:

  • Dual-locking mechanism prevents any loosening during exercises
  • Tested for over 10,000 repetitions without any loosening
  • Quick-release design that stays secure until you intentionally unlock it
  • No need for constant retightening like traditional adjustable dumbbells
Do they work with standard weight plates?

Yes! ADAPTABELL™ is compatible with standard 1-inch hole weight plates:

  • Works with any standard 1.1" hole plates you already own
  • Compatible with iron, rubber-coated, and vinyl plates
  • Accepts plates from 1.25 lbs to 45 lbs
  • Mix and match different plate brands without issues
Do they work with Olympics weight plates?

Yes, with our Olympic adapter! (sold separately)

  • Olympic adapter converts the bar to accept 2-inch Olympic plates
  • Quick and easy conversion - takes less than 30 seconds
  • Maintains the same secure locking mechanism
  • Allows use of bumper plates and Olympic iron plates

The adapter is available as an add-on or included in our Pro Bundle.

Can I mix plates of different hole sizes?

For safety and stability, we recommend using plates with the same hole size:

  • Use all standard (1") plates OR all Olympic (2") plates with adapter
  • Mixing sizes can cause imbalance and potential safety issues
  • Our adapter system makes it easy to switch between plate types
  • Both configurations maintain perfect balance and security
How much loading space is there?

ADAPTABELL™ provides generous loading space:

  • Pro model: 3.3 inches of loadable sleeve length per side
  • Max model: 4 inches of loadable sleeve length per side

The actual capacity depends on the thickness and weight of your plates.

How much does the Adaptabell weigh?

The ADAPTABELL™ handle assembly weighs:

  • Pair of the Pro Model: 710 Gram or 1.56 Pound
  • Pair of the Max Model: 1.720 Gram or 3.8 Pound
  • Maximum capacity: 75-150 lbs per handel depending on model

The lightweight design allows for smaller weight increments and better progression.

Do Adaptabells come in a pair?

Yes! ADAPTABELL™ dumbbells are sold as a pair:

  • Each order includes 2 complete dumbbell handles
  • 4 secure locking collars included (2 per dumbbell)
  • Perfect for bilateral and unilateral exercises
  • Weight plates are sold separately or in bundle packages

Check out our starter bundles that include plates for a complete set.

Can I use them with other branded plates?

Absolutely! ADAPTABELL™ works with plates from any brand:

  • Compatible with CAP, Yes4All, Rogue, and all major brands
  • Works with iron, rubber, urethane, and vinyl coated plates
  • Standard 1" or Olympic 2" (with adapter) compatibility
  • No proprietary plates required - use what you have!

This universal compatibility saves you money and maximizes flexibility.

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Great for Centering 2" Plates!

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Weight Plates

HYDROPLATES™

Portable Weights for Travel

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Weight Plates

Calibrated Chrome Weight Plates

Perfect for Home Gyms

Your Success
Is Guaranteed

We want you to reach your fitness goals, enjoy your life and feel healthy. The last thing we want is to create more stress in your life, so if you decide this item is not for you we'll be happy to give you a no-hassle, no-questions-asked 100% refund.

100-day risk-free trial
Full refund if not satisfied
No questions asked
Warranty included

Customer Reviews

Based on 519 reviews
72%
(373)
17%
(90)
3%
(16)
3%
(13)
5%
(27)
R
Rushane D. (US)
Max handles for max gains

These dumbbell handles were a great investment for my home gym. I paired them with a set of CAP standard weight plates and with the max handles I’ve got a pair of dumbbells that can go up to over 140 lbs each. The extension sleeves were redesigned and are rock solid. They’re heavy and made of all steel. Feels like a product that’s built to last. This setup has been great for my workouts and gives the most comfortable dumbbell experience I’ve had since working out in a commercial gym. Highly recommend the max handle bundle!

G
George W.
Amazing knurled handles

With the thick grip and this knurl it’s perfect for heavy dumbbell rows. It doesn’t tare your hands up like other adjustable dumbbells do. I’m a fan of Kensui’s innovative designs. Will recommend these to everyone.

E
Eric O.
Great Dumbbell Upgrade

I have used traditional screw adjustable dumbbells and these kensui handles are a great upgrade with the internal screw mechanism. I also like the plastic more than a steel handle for some reason it feels easier to grip.

l
loxcommon (US)
Pretty Great!

Great Quality, build is light and inexpensive. Will return to this brand

J
Jesse M. (US)
Perfect for a garage gym starter!

Love these dumbbells adapters! Nice knurled and thick grip. I can see these lasting a lifetime! Can’t wait to get some more products from Kensui!