Skip to content
  • 🚚 No shipping fees, more savings 🚚
  • 🚚 No shipping fees, more savings 🚚
Diving Suit ShopDiving Suit Shop
  • Menu
    • No products in the cart.

      Return to shop

  • Cart

    No products in the cart.

    Return to shop

  • Surfing
    • Wax
    • Legropes
    • Traction Pads
    • Fins Quad,Twin, 5 Fin
    • Accessories Surfing
    • Fins Thruster
    • Fins Longboard
    • Traction Pads On Special
    • Covers Fun-Retro-Fish
    • Covers Multi boards
    • Covers Shortboards
    • Legropes On Special
    • Covers Longboards
    • Surfing Maps
    • Fins On Special
  • Wetsuits and Thermals
    • Thermal Wear Mens
    • Sale Mens Wetsuits
    • Booties
    • Mens Wetsuits
    • Wetsuits Boys
    • Ladies Wetsuits
    • Wetsuits Kids
    • Sale Ladies Wetsuits
    • Sale Wetsuits Youth and Kids
    • Thermal Wear Ladies
    • Neoprene Caps and Hoods
    • Thermal Wear Boys
    • Sale Booties Gloves Hoods
    • Sale Thermal Wear
    • Wetsuits Girls
  • Skimboards
    • Skimboards Pro Level
    • Accessories Skim
    • Skimboards Entry Level
    • Skimboards Intermediate Level
    • Skimboards Advanced Level
  • Windsurfing Rig Parts
    • Mast Bases
    • Mast Extensions
    • Masts
    • Booms
  • Foil
    • Foil Accessories
    • Foils
    • Bolts and Bits
    • Windfoil Boards
    • Foiling Bags and Covers
    • Wingfoil Boards
    • Foiling Used
    • Wings
  • BodyBoards
    • Accessories Body
    • Boards Body
    • Fins Body
    • Covers Body
    • Surfmats
  • New Products
Home / Windsurfing Rig Parts / Mast Bases
  • Goya RDM 90% Carbon Wave Mast -Diving Suit Shop goyardmm
  • Chinook Two Bolt Mechanical Mast Base US Cup -Diving Suit Shop 574139 1
-47%
Streamlined Twist-On Mast Base With Base Cup

Streamlined Twist-On Mast Base With Base Cup

$189.99 Original price was: $189.99.$99.99Current price is: $99.99.

SKU: C3VYZ 908706737 Categories: Mast Bases, Windsurfing Rig Parts
  • Effortless Shopping, Quality Products
  • Safeguard Your Shopping Experience
  • Nature-friendly materials, for a better planet.
  • Free Shipping, No Compromise on Quality
Browse
  • BodyBoards
    • Accessories Body
    • Boards Body
    • Covers Body
    • Fins Body
    • Surfmats
  • Foil
    • Bolts and Bits
    • Foil Accessories
    • Foiling Bags and Covers
    • Foiling Used
    • Foils
    • Windfoil Boards
    • Wingfoil Boards
    • Wings
  • Skimboards
    • Accessories Skim
    • Skimboards Advanced Level
    • Skimboards Entry Level
    • Skimboards Intermediate Level
    • Skimboards Pro Level
  • Surfing
    • Accessories Surfing
    • Covers Fun-Retro-Fish
    • Covers Longboards
    • Covers Multi boards
    • Covers Shortboards
    • Fins Longboard
    • Fins On Special
    • Fins Quad,Twin, 5 Fin
    • Fins Thruster
    • Legropes
    • Legropes On Special
    • Surfing Maps
    • Traction Pads
    • Traction Pads On Special
    • Wax
  • Uncategorized
  • Wetsuits and Thermals
    • Booties
    • Ladies Wetsuits
    • Mens Wetsuits
    • Neoprene Caps and Hoods
    • Neoprene Gloves
    • Sale Booties Gloves Hoods
    • Sale Ladies Wetsuits
    • Sale Mens Wetsuits
    • Sale Thermal Wear
    • Sale Wetsuits Youth and Kids
    • Thermal Wear Boys
    • Thermal Wear Ladies
    • Thermal Wear Mens
    • Wetsuits Boys
    • Wetsuits Girls
    • Wetsuits Kids
  • Windsurfing Rig Parts
    • Booms
    • Mast Bases
    • Mast Extensions
    • Masts
  • Description
  • Reviews (0)

The twist-on board attachment system allows you to hand attach, hand adjust, hand remove. It is low profile, low bend point, on center, free rotating above and below the Streamlined joint [joint has a 3 line Dyneema safety, gets you back without damaging your board]. This tried and true design is bullet-proof and will not let you down. . All these things together, this design with the twist-on system, the original best tendon joint, and U.S. base cup, has been knocked off regularly through the years but not once has it been equaled. If you want the best, this is it. Pro-tested!

Weight: 408 grams / 14.4 ounces

Guaranteed not to fail for 2 years

Streamlined Twist-On Mast Base With Base Cup -Diving Suit Shop 2099a

LOW BEND POINT

It’s important to keep your center of gravity and your power as close to the deck of your board as possible. That way you have the best control over the amount of power you are receiving from your rig. All Streamlined bases have the lowest bend point of all bases available on the market.

EASY ON, EASY ADJUST AND EASY OFF BY HAND

Its easy to get your base on tight and stay right on the sweet spot. Quick and easy to remove. Because of the base’s low profile it also stays out of way of your toes.

Reviews

There are no reviews yet.

Be the first to review “Streamlined Twist-On Mast Base With Base Cup” Cancel reply

Related products

-73%
Goya Aluminium Boom
Quick View

Goya Aluminium Boom

$359.99 Original price was: $359.99.$96.99Current price is: $96.99.
-72%
Patrik Mast SDM 80% Carbon Superseded
Quick View

Patrik Mast SDM 80% Carbon Superseded

$346.00 Original price was: $346.00.$95.99Current price is: $95.99.
-46%
Chinook Two Bolt Tendon Euro Pin Mast Base
Quick View

Chinook Two Bolt Tendon Euro Pin Mast Base

$179.99 Original price was: $179.99.$97.99Current price is: $97.99.
-59%
Chinook Carbon SDM Pin Style Mast Extension
Quick View

Chinook Carbon SDM Pin Style Mast Extension

$239.99 Original price was: $239.99.$97.99Current price is: $97.99.
-68%
Patrik Mast SDM 100% Carbon
Quick View

Patrik Mast SDM 100% Carbon

$312.00 Original price was: $312.00.$98.99Current price is: $98.99.
-32%
Chinook Aluminium RDM Pin Style Mast Extension
Quick View

Chinook Aluminium RDM Pin Style Mast Extension

$142.99 Original price was: $142.99.$96.99Current price is: $96.99.
-31%
Chinook Two Bolt Rubber Quick Release Mast Base Without Deckplate
Quick View

Chinook Two Bolt Rubber Quick Release Mast Base Without Deckplate

$139.99 Original price was: $139.99.$95.99Current price is: $95.99.
-42%
Chinook Two Bolt Mechanical Mast Base Euro Pin
Quick View

Chinook Two Bolt Mechanical Mast Base Euro Pin

$169.99 Original price was: $169.99.$98.99Current price is: $98.99.
MY ACCOUNT
  • Cart
  • Checkout
  • My account
  • Wishlist
ABOUT US
  • About Us
  • FAQ
  • Returns & Exchanges
  • Delivery
  • Contact Us
LEGAL
  • Privacy Policy
  • Payment Method
  • Shipping & Returns
  • Term and Conditions
Signup for Newsletter

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

    Copyright 2026 © Diving Suit Shop
    • Surfing
      • Wax
      • Legropes
      • Traction Pads
      • Fins Quad,Twin, 5 Fin
      • Accessories Surfing
      • Fins Thruster
      • Fins Longboard
      • Traction Pads On Special
      • Covers Fun-Retro-Fish
      • Covers Multi boards
      • Covers Shortboards
      • Legropes On Special
      • Covers Longboards
      • Surfing Maps
      • Fins On Special
    • Wetsuits and Thermals
      • Thermal Wear Mens
      • Sale Mens Wetsuits
      • Booties
      • Mens Wetsuits
      • Wetsuits Boys
      • Ladies Wetsuits
      • Wetsuits Kids
      • Sale Ladies Wetsuits
      • Sale Wetsuits Youth and Kids
      • Thermal Wear Ladies
      • Neoprene Caps and Hoods
      • Thermal Wear Boys
      • Sale Booties Gloves Hoods
      • Sale Thermal Wear
      • Wetsuits Girls
    • Skimboards
      • Skimboards Pro Level
      • Accessories Skim
      • Skimboards Entry Level
      • Skimboards Intermediate Level
      • Skimboards Advanced Level
    • Windsurfing Rig Parts
      • Mast Bases
      • Mast Extensions
      • Masts
      • Booms
    • Foil
      • Foil Accessories
      • Foils
      • Bolts and Bits
      • Windfoil Boards
      • Foiling Bags and Covers
      • Wingfoil Boards
      • Foiling Used
      • Wings
    • BodyBoards
      • Accessories Body
      • Boards Body
      • Fins Body
      • Covers Body
      • Surfmats
    • New 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.