Locking Screw Plate-Loaded Dumbbell AD3

  • One Dumbbell, Multiple Weights
  • Expandable Plate-Loaded Design
  • All-Metal Locking System
  • One-Piece Stamped Plates
  • Fixed-Dumbbell Feel
Sale price$459.99

Type: 50LB Pair
Only 15 units left
NEW ARRIVAL $50 OFF
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6-month Warranty
3-7 day Delivery
45-day Money Back
Sale price$459.99 Edit Options

Make Room for More Strength

One Dumbbell. A Full Rack of Possibilities.

One adjustable dumbbell covers multiple training weights, replacing the need for a full rack of fixed dumbbells. 
More training possibilities. Less space taken up. Keep your gym focused on what matters: getting stronger.

3 Steps to Your Next Weight.


Adjusting your weight shouldn't interrupt your workout. With a simple three-step process, AD3 makes changing weights straightforward and hassle-free, so you can spend less time adjusting and more time lifting.

KEY FEATURES

All-Metal Locking Construction

Featuring an all-metal threaded locking system with no plastic adjustment components, AD3 is built to handle demanding strength training. Its one-piece stamped plate construction also eliminates separate plate fasteners.

Fixed-Dumbbell Training Feel

Tightly fitted weight plates minimize gaps, unwanted movement, and rattling when locked in place. Enjoy a more solid, stable feel that brings the experience closer to training with fixed dumbbells.

Oversized Wavy Plate Grips

The enlarged 7 × 2.5cm wavy grip openings follow the natural curve of your fingers, making it easier to lift multiple plates at once without struggling with narrow openings.

Deep Diamond Knurled Handle

Deep Diamond Knurling gives your hands a secure hold, while chamfered locking bolts add comfort where it counts.

  • Available Options
    50LB / 80LB
  • Starting Weight
    10LB
  • Adjustment Type
    Threaded Locking
  • Handle Length
    6.8"
  • Handle Diameter
    1.43"
  • Grip Texture
    Deep Diamond Knurling
  • Handle Diameter
    1.43"
  • Plate Design
    One-Piece Stamped
  • Weight Markings
    Laser Engraved
  • Included Components (Per 50LB Dumbbell)
    1 x Dumbbell Handle (10LB) + 2 x 2.5LB Weight Plates + 6 x 5LB Weight Plates + 2 x 2.5LB Locking Screws
  • Included Components (Per 80LB Dumbbell)
    1 x Dumbbell Handle (10LB) + 2 x 2.5LB Weight Plates + 12 x 5LB Weight Plates + 2 x 2.5LB Locking Screws

Customer Reviews

Customer photo review of Rack-Mounted Leg Hold-Down Attachment

I appreciated the representative confirming my want for this product since it wasn't exactly meant the the half rack I purchased last year (2025.) The issue was minor in my opinion. When the leg hold down is in place the cable slightly rubs against it on the back side. I have noticed any wear marks or felt extra impedance so I don't believe it will be an issue for me. There was a bit of plastic that needed trimmed before it could be properly put together and a bit of paint was missing. Other than that the fit and function are fine by me.

Rack-Mounted Leg Hold-Down Attachment

Customer photo review of Rack-Mounted Leg Hold-Down Attachment

A very convenient device for training on the pull-up bar. When you lift a heavy weight, you definitely need something to hold your legs so that your body doesn’t lift up. And this is one of the few designs that, in my opinion, does a very good job of handling this task.

Rack-Mounted Leg Hold-Down Attachment

Needed this for my power rack. Fits great, very versatile adjustments for the rack. Functions great. Highly recommend.

Rack-Mounted Leg Hold-Down Attachment

Works great! Easy assembly. Website said it won’t work with the HR05 but it does. Just make sure not to pinch the cable when tightening.

Rack-Mounted Leg Hold-Down Attachment

Your company has a great line of quality products, and your customer service is easy to contact and work with!

Rack-Mounted Leg Hold-Down Attachment

Originally I ordered the product, and I didn't hear a word for a month. Pretty sure it was forgotten. But after I reached out I have to say the customer service team got right on it to fix the wrong. It was sent out to me immediately after that, - easy to assemble and does what I'd hoped it would do. Overall satisfied. Thanks!

Rack-Mounted Leg Hold-Down Attachment

Fit perfectly on my Mikolo Power Cage. Customer service contacted me to confirm compatibility. The accessory is sturdy and works exactly as I need it to.

Rack-Mounted Leg Hold-Down Attachment

It works well. The foam padding was crushed a bit, and there are paint chips, but it does what I need it to do.

Rack-Mounted Leg Hold-Down Attachment

It worked as advertised fast shipping great customer service by John. I’ll be ordering in the future more upgrades for my Mikolo K6 2.0. Thanks to the guys over at Mikolo, and especially John!

Rack-Mounted Leg Hold-Down Attachment

Great customer service. John sent a personal email verifying the my order would fit my rack. Shipping: my order arrived before promised. Easy assembly and installation. Very satisfied.

Rack-Mounted Leg Hold-Down Attachment

This attachment is working out great on my power rack. I was very impressed that Mikolo reached out right away upon ordering to confirm size and spacing to Ensure fit.

Rack-Mounted Leg Hold-Down Attachment

英文翻译: The design is pretty good. It manages to stay lightweight while still providing the functionality needed. I slightly enlarged the bolt holes so that M24 bolts could fit. Replacing the position-adjustment thumb screw with a larger M10 bolt significantly improved the user experience. The steel piece used for the lower adjustment mechanism could be made thicker. Mine arrived slightly bent, which affected the alignment of the holes and made assembly more difficult.

Rack-Mounted Leg Hold-Down Attachment

Really wobbley, does not work with 1 inch cotter pins and was expecting more quality like their aubis hold down but saldy cant buy that itself.

Rack-Mounted Leg Hold-Down Attachment

I most appreciate the open lines of communication especially since this was back ordered . It was a comfort to know I was dealing with a reputable company. Quality product.

Rack-Mounted Leg Hold-Down Attachment

Leg hold down fit great. If I could change anything it would be vinyl covered pads. Other than that it worked perfectly. I could not send a photo because I only use it on back day.

Rack-Mounted Leg Hold-Down Attachment

Was easy to assemble and attaches easily to the rack. Makes doing lat pulldowns easier when you have a place to anchor your legs. I should have bought this a long time ago.

Rack-Mounted Leg Hold-Down Attachment

I received this very quickly and put it together and everybody that has used it has really had high praise for it. It works great

Rack-Mounted Leg Hold-Down Attachment