Brass T Nut Slider 8mm

Fits most standard mast tracks and bases. 

One-Bolt Tendon Mast Base

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.

One-Bolt Rubber Mast Base

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...

One-Bolt Mechanical Mast Base

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.

Medium SDM Aluminum Ext

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...

Tall SDM Aluminum Ext

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...

Two-Bolt 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.

Epic Gear Euro Pin to US Cup Adapter Kit

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.

Two-Bolt Mechanical Upper US

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

Short SDM Aluminum Ext

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...

Two-Bolt Tendon Upper US

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

Two-Bolt Mechanical Mast Base

Mechanical joint is easy to attach to wide boards and provides instant drive to race boards. 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...

1-Bolt Pro Flex Mast Base US Base Cup

Product Details The all new Chinook Sailing 1-Bolt Pro Flex Mast Base US Base Cup features all of the advantages of a tendon base with the added features of a mechanical base.    Same shock absorption as standard Tendon bases for...

Medium Skinny Aluminum Ext

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...

Tall Skinny Carbon Ext

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...

Medium Skinny Carbon Ext

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...

Medium SDM Carbon Ext

Improved lay-up and manufacturing process! Our lightest extensions come with a Six Pin adjusting collar and are stronger than ever with reinforced sidewalls. All come with the proven US Power-Haul pulley and cleat system and cm index markings. 2 cm...

Tall Skinny Aluminum Ext

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...

Two-Bolt Rubber Upper US

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

2-Bolt Pro Flex Mast Base US Base Cup

Product Details The all new Chinook Sailing 2-Bolt Pro Flex Mast Base US Base Cup features all of the advantages of a tendon base with the added features of a mechanical base.    Same shock absorption as standard Tendon bases for...

Short Skinny Aluminum Ext

    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...

Tall SDM Carbon Ext

Improved lay-up and manufacturing process! Our lightest extensions come with a Six Pin adjusting collar and are stronger than ever with reinforced sidewalls. All come with the proven US Power-Haul pulley and cleat system and cm index markings. 2 cm...

Nautix Mechanical Base US

Nautix mechanical base with a US upper.

Short Skinny Carbon Ext

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...