Pro Series expandable – fully assembled

Take Your Sport EXP to 90 lbs

Designed exclusively for the Sport EXP adjustable dumbbells. This Stage 3 Expansion Kit increases your Sport EXP set to 90 lbs per hand.

Sport 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. 

Compatible with the Sport EXP Adjustable Dumbbell only. Sport EXP and Sport EXP Stage 2 Kit must be installed before adding Stage 3.

Sport EXP expansion kits are NOT compatible with Elite EXP, Sport 5.5, Sport 9.0, Sport 24, and Sport 50. Check all compatibility here. If you are unsure of compatibility, please contact customer service.

  • A pair of Stage 3 Sport 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 Sport EXP set and Stage 2 kit 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.

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

Maximize your strength with the Sport EXP Stage 3 Expansion Kit. This kit increases each dumbbell’s weight capacity to 90 lbs, perfect for those looking to challenge themselves with heavier resistance.

What's Included:

  • Two 10-pound add-on weights per dumbbell (4 total) to bring each dumbbell’s weight up to 90 lbs.

    Key Features:

    • Increased Weight Capacity: The 10-pound weights per side increase each dumbbell’s weight from 70 lbs to 90 lbs, ideal for more advanced strength training.
    • Quick Adjustments: As with all PowerBlock systems, the magnetic selector pin makes adjusting the weight fast and easy.
    • Space-Saving Solution: This expansion allows you to replace multiple dumbbell sets, saving space in your home gym.
    • Durable Build: Constructed with commercial-grade materials, the Stage 3 kit is designed to endure tough workouts.

    Compatibility:

    • Compatible with the PowerBlock Sport EXP dumbbells.
    • Requires the original Sport EXP set and Stage 2 Expansion Kit to be installed before adding this Stage 3 expansion kit.

    • 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.

    Who is the Sport EXP Stage 3 best for?

    Stage 3 is ideal for lifters who are outgrowing the 70 lb range and want to utilize the full 90 lb maximum weight to continue strength progression.

    Can I purchase the Sport EXP Stage 1 Adjustable Dumbbells?

    No. The Sport EXP Stage 1 Adjustable Dumbbells have been discontinued as of 2024. We only carry the Sport EXP Expansion kits.

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

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

    Does the Sport EXP Stage 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 3 plates cannot be attached.

    Does the Sport EXP Stage 1 and Sport EXP Stage 2 have to be purchased in order to use the Sport EXP Stage 3 kit?

    Yes. The Sport EXP Stage 1 and Stage 2 would need to be owned or purchased before the Sport EXP Stage 3 kit will work.

    Does the Sport EXP Stage 3 kit work with the PowerBlock 50 set?

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

    Does the Sport EXP Stage 3 kit work with the PowerBlock EXP Stage 1 and PowerBlock EXP Stage 2?

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

    Are expansion kits sold in pairs?

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

    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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