Chinook Skinny Aluminum Windsurfing Mast Extension

Price range: $87.00 through $115.00
Our most proven windsurfing extension. Extensively used in Big Winds' schools and rental fleets. Bombproof, single-piece aluminum construction, Power Haul 6:1 pulley and cleat assembly, and an easy to adjust six pin adjustment collar.
Select options This product has multiple variants. The options may be chosen on the product page

Duotone iTendon for iBase 2025

$89.00
With this innovative heavy-duty tendon we have set the bar high in terms of reliability, performance and safety. Instead of

Chinook Mechanical Universal 1-Bolt US Windsurfing Mast Base

$90.00
Mechanical joint makes attaching and separating a sail from a board easy from all angles, at all times. No need to turn the board on its side. Great for foiling, or flat water locations. Not for jumping.

Chinook Rubber 1-Bolt US Windsurfing Mast Base

$90.00
Perfect for a variety of conditions and rider skill levels thanks to its great flexibility and shock absorption.

Chinook Tendon 1-Bolt US Windsurfing Mast Base

$95.00
A perennial favorite at Big Winds, with decades of proven performance and staying power.

Chinook Tendon Upper Joint Euro Pin Windsurfing Mast Base

$97.00
Makes for quick and easy sail and board swaps. Pairs with Chinook's 2-bolt Quick Release Windsurfing Base Plate.

Chinook Rubber 2-Bolt US Windsurfing Mast Base

$103.00
The rubber joint offers great flexibility and the smoothest ride on the water thanks to its shock absorption. Chinook's two-bolt mast bases are two separate pieces, and include Chinook's Quick Release Base Plate.

Chinook Tendon 1-Bolt Euro Pin Windsurfing Mast Base

$108.00
Blends efficiency and durability. The tendon provides a positive, direct transfer or rig power into a board, as well as shock absorption for a smooth ride through chop, and for jumping.

Chinook Tendon 2-Bolt US Mast Windsurfing Base

$108.00
DETAILS The Chinook Tendon 2-Bolt US Windsurfing Base blends efficiency, durability and convenience. The tendon provides a positive, direct transfer