Skip to content
  • 💰 Get more for your money with our low-price sale! 💰
  • 💰 Get more for your money with our low-price sale! 💰
Diving Equipment StoreDiving Equipment Store
  • Drysuits
    • Drysuits Kayak
    • Sup Drysuits
    • All Drysuits
  • Wetsuit Tops, Shorts & Trousers
    • Wetsuit Trousers
    • Wetsuit Shorts
  • Boardsports
    • Stand Up Paddle Boarding
    • Surfing
    • Bodyboarding
  • Sailing
    • Accessories
    • Sailing – Dinghy
    • Sailing – Yacht
  • Accessories
    • Essentials
    • Luggage & Dry Bags
    • Footwear
    • Life, Buoyancy & Impact Vests
    • Care & Repair
    • Sunglasses
    • Safety Gear
  • Wetsuits
    • Accessories
    • Rash Vests, Thermo & Neo
    • Shorty Wetsuits
    • Wetsuit Boots
  • Featured Products
    • No products in the basket.

      Return to shop

  • Basket

    No products in the basket.

    Return to shop

 

Dynamic Blocks Single Through Deck A21

Home / Sailing / Sailing - Dinghy
Sale!
Dynamic Blocks Single Through Deck A21

£24.95 Original price was: £24.95.£17.47Current price is: £17.47.

Clear
SKU: D2V0C 1700046284 Categories: Sailing, Sailing - Dinghy Tag: Allen Brothers
  • Nature-friendly materials, for a better planet.
  • Fast reliable delivery options
  • The home of quality products.
  • Shop quality, shop with us.
Browse
  • Accessories
    • Care & Repair
    • Essentials
      • Change Mats
      • Change Robes
    • Footwear
      • Flip Flops
      • Wetsuit Boots
        • Dinghy, Kayak & Dive Boots
      • Wetsuit Shoes
    • Life, Buoyancy & Impact Vests
      • Buoyancy Aids
    • Luggage & Dry Bags
      • Dry Bags
    • Safety Gear
    • Sunglasses
      • Mens Sunglasses
  • Boardsports
    • Bodyboarding
      • Boards
    • Stand Up Paddle Boarding
      • Sup Essentials
        • Sup Pumps
      • Sup Paddles
      • Sup Wetsuits
    • Surfing
      • Surfboards
  • Drysuits
    • All Drysuits
      • Thermal Layering
    • Drysuits Kayak
    • Sup Drysuits
  • Sailing
    • Accessories
      • Footwear
        • Sailing Shoes
        • Thermal Socks
      • Gloves, Hoods & Hats
        • Beanies, Skull Caps & Neck Gaiter
        • Sailing Gloves
        • Technical Hats, Caps & Visors
    • Sailing - Dinghy
      • Dinghy Hardware
      • Hikers
    • Sailing - Yacht
      • Shore Wear
        • Fleeces
        • Technical Sailing Shorts
  • Wetsuit Tops, Shorts & Trousers
    • Wetsuit Shorts
    • Wetsuit Trousers
  • Wetsuits
    • Accessories
      • Footwear
        • Wetsuit Boots
          • Surfing & Boardsports
      • Gloves, Hoods & Hats
        • Neoprene Gloves
        • Surf Hoods & Neoprene Beanie
    • Rash Vests, Thermo & Neo
    • Shorty Wetsuits
      • Mens
    • Wetsuit Boots
  • Description
  • Additional information
  • Reviews (0)

Model: A2131*1 & A2121*1Colour: Black

Allen Dynamic Blocks feature the patented Allen Dynamic bearing system which provides an unrivalled weight to performance ratio. This is coupled with our high strength and rope friendly stainless steel ultra-strap; making them amongst the strongest and most reliable ball bearing blocks on the market. The range is available with different types of accessories including lacing eyes, hooks, swivels and cleats. The range also features a central rivet that provides great options as a tie on becket. You’ll find a block to suit most control line applications.

Block (mm) Max. Line Diameter (mm) Breaking Load (kg) Max. Working Load (kg) Weight (g) Length (mm) Fixing Hole Centres (mm)
20 6 400 105 10.8 34  43
30 8 500 140 25.6 47 60
Block Size

20mm, 30mm

Reviews

There are no reviews yet.

Be the first to review “Dynamic Blocks Single Through Deck A21” Cancel reply

Related products

Sale!
GILL NeoSkin Sock
Quick View

Accessories

GILL NeoSkin Sock

£18.95 Original price was: £18.95.£13.27Current price is: £13.27.
Sale!
Mystic Fisherman Cap
Quick View

Accessories

Mystic Fisherman Cap

£44.95 Original price was: £44.95.£31.47Current price is: £31.47.
Sale!
Gul Code Zero Race Cap Red
Quick View

Accessories

Gul Code Zero Race Cap Red

£15.95 Original price was: £15.95.£11.17Current price is: £11.17.
Sale!
Dakine Felix Fleece Cap
Quick View

Accessories

Dakine Felix Fleece Cap

£42.95 Original price was: £42.95.£30.07Current price is: £30.07.
Sale!
25mm Low Load Swivel Base
Quick View

Dinghy Hardware

25mm Low Load Swivel Base

£60.95 Original price was: £60.95.£42.67Current price is: £42.67.
Sale!
Gul Junior Code Zero Winter Short Finger Sailing Gloves
Quick View

Accessories

Gul Junior Code Zero Winter Short Finger Sailing Gloves

£18.95 Original price was: £18.95.£13.27Current price is: £13.27.
Sale!
Spinlock PXR Cam Cleat 2-6mm
Quick View

Dinghy Hardware

Spinlock PXR Cam Cleat 2-6mm

£34.95 Original price was: £34.95.£24.47Current price is: £24.47.
Sale!
ORCA Surf Cap
Quick View

Accessories

ORCA Surf Cap

£24.95 Original price was: £24.95.£17.47Current price is: £17.47.
MY ACCOUNT
  • My account
  • Wishlist
  • Checkout
  • Cart
ABOUT US
  • About Us
  • Returns & Exchanges
  • Delivery
  • FAQ
  • Contact Us
LEGAL
  • Privacy Policy
  • Shipping & Returns
  • Payment Method
  • Term and Conditions
Signup for Newsletter

Sign up for exclusive offers, original stories, events and more.

    Copyright 2026 © www.wetsuitoutletshop.com
    • Drysuits
      • Drysuits Kayak
      • Sup Drysuits
      • All Drysuits
    • Wetsuit Tops, Shorts & Trousers
      • Wetsuit Trousers
      • Wetsuit Shorts
    • Boardsports
      • Stand Up Paddle Boarding
      • Surfing
      • Bodyboarding
    • Sailing
      • Accessories
      • Sailing – Dinghy
      • Sailing – Yacht
    • Accessories
      • Essentials
      • Luggage & Dry Bags
      • Footwear
      • Life, Buoyancy & Impact Vests
      • Care & Repair
      • Sunglasses
      • Safety Gear
    • Wetsuits
      • Accessories
      • Rash Vests, Thermo & Neo
      • Shorty Wetsuits
      • Wetsuit Boots
    • Featured Products
    • Login

    Login

    Lost your password?

    Register

    Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.