{"product_id":"mast-extension-u-pin-carbon-rdm-48cm-xo-sails-ar00961","title":"Mast Extension U-Pin Carbon RDM 48cm XO Sails AR00961","description":"\u003cp\u003eMast Extension U-Pin Carbon RDM 48cm XO Sails AR00961\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe XO Sails Mast Extension U-Pin Carbon RDM 48cm is a high-performance mast extension designed to deliver precision sail tuning and exceptional stiffness for demanding windsurfing sessions. Constructed from high-quality prepreg carbon, this extension provides very rigid and resistant performance that minimizes unwanted flex and transfers power efficiently from sail to board. It features a smooth-operating high-strength cast iron pulley and a durable Dynema control line for reliable adjustment under load. The U-pin attachment offers quick, secure clipping to RDM-compatible masts and rigs, while the sleek black finish complements modern setups. Built to withstand challenging conditions, this extension is optimized for riders seeking improved sail control, quicker response, and long-lasting durability on the water. Available in multiple lengths (32 cm and 48 cm) to match different rigging and tuning preferences.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePrepreg carbon construction for superior stiffness and strength  \u003c\/li\u003e\n\u003cli\u003eU-pin attachment for fast and secure fitting to RDM masts  \u003c\/li\u003e\n\u003cli\u003e48 cm length optimized for high-performance tuning (also available in 32 cm)  \u003c\/li\u003e\n\u003cli\u003eDynema control line for low-stretch, durable adjustment  \u003c\/li\u003e\n\u003cli\u003eHigh-strength cast iron pulley for smooth, reliable operation  \u003c\/li\u003e\n\u003cli\u003eSleek black finish for a professional look  \u003c\/li\u003e\n\u003cli\u003eVery rigid and resistant build to withstand demanding conditions  \u003c\/li\u003e\n\u003cli\u003eCompatible with standard RDM mast systems and most modern windsurfing rigs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eManufacturer: XO Sails\u003cbr\u003e\nSKU: AR00961\u003cbr\u003e\nMaterial: Prepreg carbon body; Dynema control line; high-strength cast iron pulley\u003cbr\u003e\nSize\/Dimensions: 48 cm (length)\u003cbr\u003e\nWeight: Not specified\u003cbr\u003e\nColor: Black\u003cbr\u003e\nCategory: Mast Extensions\u003cbr\u003e\nAge Group: Adults\u003cbr\u003e\nGender: Unisex\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Use:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIdeal for advanced and professional windsurfers or serious recreational riders who demand precise sail tuning and a stiff, responsive rig. Best suited for high-performance disciplines where reduced mast flex and accurate trim matter, such as freeride, slalom, and wave riding in a range of wind conditions. Pair with RDM masts and compatible booms; rinse and maintain moving parts after saltwater use to preserve pulley and line performance.\u003c\/p\u003e","brand":"XO Sails","offers":[{"title":"Default Title","offer_id":51707300151572,"sku":"AR00961","price":199.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0858\/7080\/5268\/files\/AR00961_1.jpg?v=1764293003","url":"https:\/\/movesea.com\/products\/mast-extension-u-pin-carbon-rdm-48cm-xo-sails-ar00961","provider":"MOVESEA COM","version":"1.0","type":"link"}