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 40.8 kg per hand.

Sport EXP Stage 3 Kit (31.8-40.8)

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 40.8 kg per hand

Completes the set by expanding to the full 40.8 kg range in 4.5 kg increments, giving you a progressive, space‑efficient path for heavier training in home or limited‑space environments.

Check Compatibility
Sold as a pair
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 40.8 kg, perfect for those looking to challenge themselves with heavier resistance.

What's Included:

  • Two 4.5 kg add-on weights per dumbbell (4 total) to bring each dumbbell's weight up to 40.8 kg.

    Key Features:

    • Increased Weight Capacity: The 4.5 kg weights per side increase each dumbbell's weight from 31.8 kg to 40.8 kg, 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.

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    Compatible With

    • Sport Series
      • Sport EXP

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