PowerBlock Pro 100 series adjustable dumbbell weight plates with 90 and 100 pounds

Complete The Set And Reach 45.4 kg Per Dumbbell

The Stage 4 Kit expands your Pro 100 EXP Dumbbells from 36.3 kg to 40.8 kg to 45.4 kg per hand.

Pro 100 EXP Stage 4 Kit (up to 45.4 kg)

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

This kit is only compatible with the Pro 100 EXP Stage 1,Stage 2 and Stage 3 (2.3–36.3 kg) dumbbells. If your dumbbells say Pro 100 EXP and currently max out at 36.3 kg, this kit fits.

It will not work with any other PowerBlock models. Check compatibility here.  If you are unsure of compatibility, please contact customer service.

  • A pair of Pro 100 EXP Stage 4 weights (one for each dumbbell) in a single box
  • Purple and black color‑coded side rails for quick weight identification
  • Everything needed to expand your existing Stage 1, Stage 2 and Stage 3 set to 45.4 kg per hand

Finish your setup with the expansion kit that locks smoothly into your Pro 100 EXP system, adding weight only when you’re ready for more. Built with the same welded steel stability you trust, this final stage delivers steady, long‑term strength progression in a compact, budget‑friendly home gym.

Sold as a pair
5 year residential warranty - not valid for commercial use

Take your Pro 100 EXP Adjustable Dumbbells to the maximum 45.4 kg with the Stage 4 Expansion Kit. Sold in pairs, this kit includes two 4.5 kg additional weights per dumbbell, bringing your adjustable dumbbells up to 45.4 kg. To add Stage 4, you will need the original Pro 100 EXP set, along with the Stage 2 and Stage 3 Expansion Kits.

Key Features:

  • Increases weight to 45.4 kg per dumbbell with the addition of 4.5 kg per side.
  • Sold in pairs.
  • Requires Stage 2 and Stage 3 expansion kits for full compatibility.
  • Perfect for advanced strength training and progression.

What is the benefit of purchasing the Pro 100 EXP Stage 4 Expansion Kit?

Stage 4 expands your Pro 100 EXP set to the full 100 lb range, giving you access to 90 lb and 100 lb weight options when you’re ready to advance. You don’t need a new dumbbell system, and the compact design keeps storage simple.

Who should consider adding the Pro 100 Stage 4 Kit?

It's ideal for anyone who has the Pro 100 Stage 1, Stage 2, and Stage 3 kit and wants to reach the full 100 lb capacity as their strength builds, without needing to buy a whole new dumbbell set. This is a good fit for advanced lifters who are ready to push into heavier compound movements like presses, squats, rows, lunges, and deadlifts.

Does the Pro 100 EXP Stage 4 Kit work with other other PowerBlock sets?

No. The Pro 100 EXP Stage 4 kit will only work with the Pro 100 EXP set. You can check compatibility here.

Do I need to have the Pro 100 EXP Stage 3 Kit to use Stage 4?

Yes. You must have the Pro 100 EXP Stage 1, Stage 2, and Stage 3 on your Pro 100 EXP set before using the Stage 4 kit.

Does the Pro 100 EXP Stage 1, Pro 100 EXP Stage 2 and Pro 100 EXP Stage 3 have to be purchased to use the Pro 100 EXP Stage 4 kit?

Yes. The Pro 100 EXP Stage 4 is an add-on expansion kit and only works when Stages 1, 2, and 3 are already in place.

Does the Pro 100 EXP Stage 2, Stage 3 or Stage 4 kits work with other PowerBlock sets?

No. The Pro 100 EXP Stage 2, Stage 3, and Stage 4 kits will only work with the Pro 100 EXP set.

What is considered retail/home use?

Home use or retail sets are non-commercial sets that are utilized by one person or a small family in a home for personal, non-commercial use.

Are expansion kits sold in pairs?

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

What does “EXP” mean on this set?

“EXP” stands for Expandable.

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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