Increase the weight of your adjustable dumbbell set up to 90 pounds with a PowerBlock Expansion.

Upgrade At Your Own Pace

Complete your set to 90 lbs per hand.

PowerBlock EXP Stage 3 Kit (70-90)

$199.00
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Warning: Order cancellations and returns are subject to a 20% processing/restocking fee. 

The PowerBlock EXP has been discontinued however, the expansion kits are still available.

PowerBlock EXP expansion kits are compatible with PowerBlock EXP. Check compatibility for more information.  If you are unsure of compatibility, please contact customer service.

  • A pair of Stage 3 PowerBlock EXP weights (one for each dumbbell) in a single box
  • Numbered side rails showing 80 and 90 lb for quick weight identification
  • Everything needed to expand your existing PowerBlock EXP set to 90 lbs per hand

Completes the set by expanding to the full 90 lb range in 10 lb increments, giving you a progressive, space‑efficient path for heavier training in home or limited‑space environments.

Check Compatibility
Sold as a pair
Free shipping1
5 year residential warranty - not valid for commercial use

PowerBlock EXP Stage 3 Kit (70-90) is the ultimate upgrade for your PowerBlock EXP adjustable dumbbells, expanding the weight range from 70 lbs to 90 lbs per dumbbell. Perfect for advanced strength training, this kit offers additional resistance to help you push your limits and achieve your fitness goals. With easy installation and a durable design, the Stage 3 Kit allows for smooth weight adjustments, making it an essential addition to your PowerBlock system.

Key Features:

  • Expanded Weight Range: Increases your PowerBlock EXP dumbbells' weight from 70 to 90 lbs per dumbbell, offering more resistance for advanced workouts.
  • Easy Installation: Simple to add with the selector pin system for quick and efficient weight adjustments.
  • Durable Construction: Built to endure heavy use, ensuring long-lasting performance for both home and commercial gyms.

  • Free shipping on residential products to the 48 contiguous United States via FedEx.
  • Commercial products ship via FedEx at calculated rates.
  • Expedited shipping is not available.
  • Orders are processed and shipped within 2–4 business days.
  • Heavier dumbbells and larger attachments may ship in multiple boxes.

What's the benefit of adding the PowerBlock EXP Stage 3?

Adding Stage 3 expands your PowerBlock EXP dumbbells from 70 lbs to 90 lbs per hand, giving you the full weight range for advanced strength training. It’s ideal if you’re progressing beyond the 70 lb level and want heavier options for compound lifts like presses, rows, squats, and lunges. Stage 3 lets your set grow with you so you can continue increasing strength without replacing your dumbbells.

Do the PowerBlock EXP Stage 1 set have to be purchased in order to use the PowerBlock EXP Stage 2 kit?

Yes. The PowerBlock EXP Stage 1 would need to be owned or purchased before the PowerBlock EXP Stage 2 kit will work.

Does the PowerBlock EXP Stage 3 work with the PowerBlock 50?

No. The PowerBlock 50 is the non-expandable version of the PowerBlock EXP Stage 1 and does not have the required handle slots for expansion plates, meaning the PowerBlock EXP Stage 3 plates cannot be attached.

Does the PowerBlock EXP Stage 2 or 3 work with the Sport 24?

No. The Sport 24 is non‑expandable and does not have the slots left on the handle that are required for expansion plates, meaning the Stage 2 and 3 plates cannot be attached.

Are expansion kits sold in pairs?

Yes. When an expansion kit is purchased, there are enough weight plates included to expand both dumbbells.

Does the PowerBlock EXP Stage 2 need to be purchased in order to use the PowerBlock EXP Stage 3 kit?

Yes. The PowerBlock EXP Stage 2 would need to be owned or purchased before the PowerBlock EXP Stage 3 kit would work.

Do the PowerBlock EXP Stage 1 and Stage 2 have to be purchased in order to use the PowerBlock EXP Stage 3 Expansion Kit?

Yes. The PowerBlock EXP Stage 1 and Stage 2 would need to be owned or purchased before the PowerBlock EXP Stage 3 Expansion Kit would work.

Does the PowerBlock EXP Stage 3 kit work with the Sport EXP Stage 1 set?

Yes. Although the Sport EXP and PowerBlock EXP are different colors, their expansion kits are compatible.

How do I know if my set is compatible with this expansion kit?

Our Customer Support team can help you identify your set and direct you to the correct expansion if you are unsure! Please contact us and include a picture of your current set.

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PowerBlock EXP Stage 3 Kit (70-90) Compatibility

Compatible With

  • Powerblock Series
    • PowerBlock EXP
  • Sport Series
    • Sport EXP (different color)

Not Compatible With

  • Classic Series
    • Classic 45
    • Classic 50
    • Classic 50 Plus
    • Classic Personal Trainer
  • Commercial Series
    • Commercial Pro 50
    • Commercial Pro 90
    • Commercial Pro 100
    • Commercial Pro 125/175
    • Commercial Club 125/175
  • Elite Series
    • Elite EXP
    • Pre 2012 Elite USA
    • Elite USA 90
  • Other Series
    • Personal Plus
    • THE BLOCK
  • Pro Series
    • Pro 32
    • Pro 50
    • Pro EXP
    • Pro 100 EXP
    • Pro Rexan
  • Sport Series
    • Sport 24
    • Sport 2.4 - Steel
    • Sport 5.0
    • Sport 5.5
    • SportBlock 21
    • Sport 9.0
    • Sport 50
  • Urethane Series
    • U20 (Urethane 20)
    • U32 (Urethane 32)
    • U33 (Urethane 33)
    • U50 (Urethane 50)
    • U70 (Urethane 70)
    • U90 (Urethane 90)