SKU: 42150636367

Strength Shop Adjustable Dumbbell Extension Kits

Sale price$215.55 Regular price$239.50
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Ships within 48 hours · Estimated delivery Jul 29 - Aug 3

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Description

Strength Shop Adjustable Dumbbell Extension KitsIncrease the Weight. Keep the System. The Strength Shop Extension Kits allow you to upgrade your existing Adjustable Dumbbells to a higher weight range without replacing the handles or starting from scratch. Each kit includes precisely the components required to reach the next configuration. The adjustment mechanism, balance, and feel remain exactly the same: only the maximum capacity increases. All kits are fully compatible with the Strength Shop

Increase the Weight. Keep the System.

The Strength Shop Extension Kits allow you to upgrade your existing Adjustable Dumbbells to a higher weight range — without replacing the handles or starting from scratch.

Each kit includes precisely the components required to reach the next configuration. The adjustment mechanism, balance, and feel remain exactly the same: only the maximum capacity increases.

All kits are fully compatible with the Strength Shop Adjustable Dumbbell system.

Upgrade Options

  • 20 kg to 36 kg – Increases a 20 kg dumbbell pair set up to a 36 kg set (Contents: 16 × 2 kg plates)
  • 20 kg to 49 kg – Increases a 20 kg dumbbell pair set up to a 49 kg set (Contents: 28 × 2 kg plates, 2 × pair of long bolts 1.5 kg)
  • 36 kg to 65 kg – Increases a 36 kg dumbbell pair set up to a 65 kg set (Contents: 28 × 2 kg plates, 2 × pair of long bolts 1.5 kg)
  • 20 kg to 65 kg – Increases a 20 kg dumbbell pair set up to a 65 kg set (Contents: 44 × 2 kg plates, 2 × pair of long bolts 1.5 kg)

Why Upgrade Instead of Replace?

  • Expand progressively as your strength increases
  • Keep your original handles and hardware
  • Maintain identical handling and balance
  • Save space and cost compared to buying a second set
  • The system is built to grow with you

FAQs

  • Q: Do I need to buy a completely new dumbbell set to increase the weight?
    No. The extension kits are designed specifically to upgrade your existing Adjustable Dumbbells.
  • Q: Can I upgrade in stages?
    Yes. For example, you can move from 20 kg to 36 kg first and later expand further.
  • Q: Are the plates identical to the original ones?
    Yes. The extension plates match the original plates in material, dimensions, and finish.
  • Q: Do the kits include handles?
    No. The extension kits include only the listed weight plates required for the upgrade.
  • Q: What is the weight range for the different bolt configurations?
    The dumbbells can use two bolt configurations depending on the total weight:

    Standard bolt (1 kg): adjustable from 4 kg up to 36 kg
    Extended bolt (1.5 kg): adjustable from 39 kg up to 65 kg
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 42150636367

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jean
Houston, US
★★★★★ 5
Very cute, but too big for me.
Size: Small, Color: Blue
Very cute, great quality but too big for me. Had to return. For reference I’m 4’11’’ & 105lbs
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Reviewed in the United States on May 27, 2025
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Joseph Garces
Chelsea, US
★★★★★ 5
Thick and soft.
What a steal. Thick, warm, soft and such high quality. This is an amazingly nice sweater.
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Reviewed in the United States on May 23, 2026
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Joseph Garces
Boise, US
★★★★★ 5
Thick and soft.
What a steal. Thick, warm, soft and such high quality. This is an amazingly nice sweater.
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Reviewed in the United States on May 23, 2026
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TripletMama Heather
Lake Worth, US
★★★★★ 5
Perfect for casual wear and dressy style
Color: Dark Green, Size: Small
This sweater is soooo soft and the color is so rich. The fit of it is perfect, not too tight and not too baggy, just right and I used the size guide to pick my size. Just for reference, I am 5'3" and 130lbs, 38C bust. It's well made and washes great. I chose to hang dry mine as I typically don't put any of my sweaters in the dryer to dry, just to fluff them. I have this one in two colors, the green and the tan/beige and I would say they are both a true representative of the color shown.
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Reviewed in the United States on November 15, 2025
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MMF
West Palm Beach, US
★★★★★ 5
Love the long sleeves!!!
Color: White, Size: Small
Love it! I'm 5' 11" tall and I purchased this according to reviews. Several people commented on the length of the sleeves. I have a hard time finding sleeves long enough if it's not " tall" sized. It was perfect for me. If this washes nice I'm going to consider purchasing more in other colors. I ordered the white and just love the long ribbed cuffs with the line of buttons. Very soft.
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Reviewed in the United States on May 1, 2026

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