A windsurf mast extension is inserted into the lower part of the mast to adjust its length according to the sail’s requirements. Since many sails are designed to work with different mast lengths, a mast extension is essential for flexible and accurate sail trimming.

The windsurf base, also known as a base plate, connects the rig to the board. It typically features a tendon or urethane joint that allows movement while maintaining a secure connection. A high-quality base is crucial for safety, durability, and efficient power transfer while windsurfing.

The key factor is the mast diameter. There are mast extensions designed for SDM (Standard Diameter Mast) and RDM (Reduced Diameter Mast). Duotone offers windsurf mast extensions compatible with both types, featuring clear length markings and excellent compatibility with modern sails.

The required extension length is determined by the difference between the sail’s recommended mast length and the actual mast used. Most windsurf mast extensions offer adjustment ranges of up to 30 cm or more. For optimal performance, the extension should be kept as short as possible.

Duotone stands for premium materials, precise engineering, and long-lasting performance. Duotone windsurf mast extensions & bases are known for their durability, easy handling, and reliable joint systems. Perfectly matched to Duotone sails and masts, they deliver safety and confidence on the water.