The Severne HD (Heavy Duty) Mast Extension is designed to fit Standard Diameter (SDM) windsurfing masts. This alloy mast extension features triple pulleys for easy downhauling, even on the highest tension race sails. This 16cm extension is recommended for use on sails which only require up to 16cm of extension.
- Aligned triple pulleys
- Stainless steel hinged collar with locking pins
- 0cm extension setting
- Stainless steel quick-release mechanism on base
- Euro-pin fitting for reliability and compatibility
- Port side cleat