Add on Kit to 120 lbs for Quick-Lock Dumbbells

$329.00 $299.00

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The Quick-Lock Dumbbell Add on Kit adds 45 lbs to each dumbbell to bring them up to 120 lbs each. Includes four longer locking screws and four 22.5 lb weight plates. This is not the full set of dumbbells – only an add on kit. Image on the stand with full set for illustration purpose only.

Availability: In stock (can be backordered) SKU: 120 Tags: , ,
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Quick-Lock Dumbbell – 120 lb Add on Kit includes the following:

  • 4 each 22.5 lb plates
  • 4 each long locking screws

You can put the “big” plates on the handles first (recommended) then you add or subtract the smaller plates to make smaller weight changes up and down. Very simple to use and works just like the standard plates and locking screws. The longer locking screws allow dumbbell sizes of 70-120lbs. The standard Quick-Lock dumbbell stand (sold separately or with the 75 lb set) will hold the full 120 lb dumbbells. Even with this serious amount of weight, the dumbbells are still compact. The dumbbells are just 19″ long overall at the full 120 lbs.

The QLDB Stand will hold the pair of 120’s and has storage on the lower shelf to hold the kit when not in use. 

There is an option to build this kit with all 5 lb plates (18) instead of the four 22.5 lb plates. If you are interested in ordering this way, please contact our sales office.

Quick-Lock Dumbbell Add on Kit Instruction Manual

10 reviews for Add on Kit to 120 lbs for Quick-Lock Dumbbells

  1. 5 out of 5

    Matt in Oakland (verified owner)

    It just adds more flexibility to the rest of my product. I am thinking of adding some more dumbbells to make setup quicker though. I might have an extra set to just have these heavier weights already attached so I don’t have to worry about moving them on and off so much. – From Amazon

  2. 5 out of 5

    Russ8541 (verified owner)

    Five Stars. Works as advertised, same quality as base pieces. – From Amazon

  3. 5 out of 5

    shepard (verified owner)

    I just purchased the add-on plates to take each dumbbell up to 120lb and I’m just as happy with this purchase as I am with the original 75lb kit. The larger plates do make it quicker to stack up to moderate and heavier weights. – From Amazon

  4. 4 out of 5

    Dan Brossart (verified owner)

    Nice Addition
    Just like Brad’s review, I have had issues with the larger 22.5lb plates. They work consistently if I always put them on nearest the handle, so switching these in or out takes extra time. The extra weight is nice, but I find myself avoiding them due to the extra time it takes to set them up.

  5. 5 out of 5

    Kindle Customer (verified owner)

    Such a nice addition to my 75 lb set. This set is so stable when you’re putting up over 100lbs…which is essential for peace of mind and safety. Highly recommend this product. Definitely not cheap but well worth every penny. You get what you pay for…QUALITY! – From Amazon

  6. 5 out of 5

    Brad Smalt (verified owner)

    Good concept poor execution in my experience
    For me, I have been using these 8-9 years and have almost always had problems getting the 150 add on kit to lock up as well as the 75 only kit. Inconsistencies with the hand ground plates seem to be the issues. some are more square than others. The company did send a new 150 add on set when notified so excellent service however, the 150 add on has just always been a guessing game as to whether or not they will lock up sufficiently without having to move around other plates.

  7. 5 out of 5

    carl richmond (verified owner)

    Great add-on
    Bought these the same time I bought the regular dumb bell package. One of the 45’s didn’t fit quite right and snug due to a factory defect and Iron Master immediately shipped me another one out. (Kudos to the customer service too!) Can’t very well deduct a star for that. “Stuff” happens sometimes, the important thing is they remedied it with no hassles like the pros they are. These are very durable. The best!

  8. 5 out of 5

    Ethan Kinney (verified owner)

    So Simple!
    I cannot believe no one has ever thought of these Quick Lock Dumbbells. The whole system for changing the weights is so simple. The plates are thin and easily stack. The rack is easy to assemble, sturdy, and convenient for organizing everything. I looked at the other adjustable dumbbell systems and they were too complicated and not durable. These Quick Lock Dumbbells are robust and reliable.

  9. 5 out of 5

    Mike.the.kraken (verified owner)

    Once upon a time, I became frustrated with my workout equipment and decided to purchase something that I knew was quality, would work very well, and last. That day – I went for a package deal from Ironmaster which included the 75lb Dumbbells & stand, super bench, dip & crunch attachments. Since then, I’ve used the equipment countless times, and have had zero substantive issues. Sure, the paint has chipped a little here & there – but I didn’t buy ’em to look purty!

    Getting stronger means pulling out the digital wallet to buy the upgrade kit. Spending another $200+ on an expansion kit might seem excessive, but if you’ve used Ironmaster gear – you know exactly what you’re getting. Big, heavy, quality. In Ironmaster we trust.

    If I ever grow out of these, I’ll just workout with the neighbor’s smart car. – From Amazon

  10. 5 out of 5

    JWINK (verified owner)

    Great add on to your dumbbells. I bought this add on for my Ironmaster dumbbells and love it. Great if you want heavy weights to build your big guns.

    This add on attachment like all Iron master products is solid, well built and will last forever. – From Amazon

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