Mast Extension U-Pin SDM 48cm XO Sails AR00963

Mast Extension U-Pin SDM 48cm XO Sails AR00963

Description:

The Mast Extension U-Pin SDM 48cm from XO Sails is a precision windsurfing mast extension engineered to give you secure, adjustable mast length and reliable sail tuning on the water. Built from high-quality alloy HD with a sleek black finish, this extension delivers excellent rigidity and resistance so it holds shape under load. Key components include a high-strength cast iron pulley for smooth downhaul operation and a durable Dyneema line that resists abrasion and stretch. The U-pin (push-pin) design enables fast, tool-free installation and removal so you spend less time rigging and more time sailing. Designed for SDM (Standard Diameter Mast) systems, the extension provides predictable, precise sail trim that benefits both recreational and experienced windsurfers. Its robust construction is made to withstand demanding conditions, delivering consistent performance in a variety of wind and sea states.

Key Features:

• High-quality alloy HD construction for rigidity and long life
• Sleek black finish for a professional look and protective surface
• Included Dyneema line for superior strength and abrasion resistance
• High-strength cast iron pulley ensures smooth and reliable downhaul operation
• U-pin (push-pin) quick-fit system for fast, tool-free installation
• Designed specifically for SDM (Standard Diameter Mast) compatibility
• Built to resist heavy loads and challenging conditions for dependable performance
• Available in two lengths (32 cm and 48 cm) to suit different rigging needs

Specifications:

Manufacturer: XO Sails
SKU: AR00963
Material: Alloy HD (high-strength alloy)
Size/Dimensions: 48 cm (length)
Weight: Not specified
Color: Black
Size: 48
Category: Mast Extensions
Age Group: Adults
Gender: Unisex

Recommended Use:

Ideal for recreational through advanced windsurfers who use SDM masts and need a reliable, easy-to-adjust extension for precise sail tuning. Best suited for onshore and offshore windsurfing in a range of conditions, including stronger winds and choppy water where a rigid extension improves control. Pairs well with standard SDM masts, compatible booms and sails; the included Dyneema line can be used as a durable downhaul/adjustment line. Regular inspection and basic maintenance of the pulley and line will maximize service life.