Windsurfing Bases and Extensions

Fits most standard mast tracks and bases. 

Tendon joint provides excellent performance and is easy to replace. This unique design is very low to the deck with four finger ribs for easy adjustment.

Rubber joint provides shock absorption in choppy conditions. This unique design is very low to the deck with four finger ribs for easy adjustment.   1-Bolt Rubber Mast Base US Cup 1-Bolt Twist-On Mast Base Universal Complete US Base Cup Rubber...

The greatest invention in windsurfing history - FULL STOP KEY FEATURES POWER.XT 2.0 RATCHET SYSTEM THE ONLY EXTENSION FEATURING AN INTEGRATED RATCHET SYSTEM (PATENTED) 2 THREAD SYSTEM COMPATIBLE WITH ALL SAIL BRANDS RAPID RELEASE INSTANT...

Mechanical joint is easy to attach to wide boards and provides instant drive to race boards. This unique design is very low to the deck with four finger ribs for easy adjustment.

Tendon joint provides excellent performance and is easy to replace. This unique design is very low to the deck with four finger ribs for easy adjustment.

Epic Gear Euro Pin to US Cup Adapter Kit An Epic Gear Euro Pin to US Cup Adapter Kit to make a Euro Pin mast base fit a US Cup Mast Extension.  Made to attach to the base with an stainless steel C-clip. Comes with 2 button spring clip.

This modern Mast track Base is ideal for the newest design race boards that feature sliding mast track systems. This version has a track pin bottom and a Euro Pin top to work with EP base extension systems. Features:Modern mast track pin lowerChafe...

The sleek Six Pin adjusting collar and anodized logo/index markings are some of the unique and innovative features that make these the most popular extensions on the market. Standard with the proven US Power-Haul pulley and cleat system and 2 cm...

Mechanical joint is easy to attach to wide boards and provides instant drive to race boards. This unique design is very low to the deck with four finger ribs for easy adjustment.

The new Six Pin adjusting collar and anodized logo/index markings are some of the unique and innovative features that make these the most popular extensions on the market. Standard with the proven US Power-Haul pulley and cleat system and 2 cm adjustment...

Upper part only for Two-Bolt "Quick Release" Tendon Mast Base.

Tendon joint provides excellent performance and is easy to replace. This proven design incorporates a built-in wrench for baseplate adjustment and a safety-lock mechanism. Indisputably the most dependable and easiest to use base available.

Nautix fixed stubby extension US Cup

Upper part only for Two-Bolt "Quick Release" Mechanical Mast Base.

Custom alloy and bell shaped tubing provide the best weight to strength available in aluminum. New easy to use Composite Snap Collar system eliminates lost pins or collars and can be quickly adjusted with one hand. All come with the proven US Power-Haul...

Tendon joint provides excellent performance and is easy to replace. This proven design incorporates a built-in wrench for baseplate adjustment and a safety-lock mechanism. Indisputably the most dependable and easiest to use base available.

The sleek Six Pin adjusting collar and anodized logo/index markings are some of the unique and innovative features that make these the most popular extensions on the market. Standard with the proven US Power-Haul pulley and cleat system and 2 cm...

Custom alloy and bell shaped tubing provide the best weight to strength available in aluminum. New easy to use Composite Snap Collar system eliminates lost pins or collars and can be quickly adjusted with one hand. All come with the proven US Power-Haul...

Elegant and very strong. New easy to use Composite Snap Collar system eliminates lost pins or collars and can be quickly adjusted with one hand. All come with the proven US Power-Haul pulley and cleat system and 2 cm adjustment increments. Adds a maximum...