By MAURIPRO Rigging Specialists · Updated March 2026
Genoa & jib furlers are essential sail handling systems that enable precise control over headsail deployment and trim, transforming complex sail changes into manageable operations from the cockpit. These sophisticated mechanical systems utilize engineered foil extrusions and precision-manufactured drum assemblies to provide reliable performance under varying wind loads, making them indispensable for both cruising and racing applications.
At MAURIPRO, we specialize in premium Selden Furlex systems, including both electric furlers and conversion kits that upgrade existing manual installations. Our selection features the advanced Furlex 304E electric series with stay lengths ranging from 50' to 65', alongside comprehensive conversion packages for 400 and 404 series upgrades. Each system is engineered for specific load requirements and wire configurations, ensuring optimal performance and longevity for your vessel's sail handling needs.
How to Choose the Right Genoa & Jib Furlers
Boat Size and Stay Length Requirements
The most critical factor in selecting a genoa or jib furler is matching the system's maximum stay length capacity to your vessel's forestay dimensions. Selden's Furlex 304E series accommodates various stay lengths, with models supporting maximum stays of 50 feet, 57 feet, and 65 feet. Boats under 35 feet typically require the 50-foot capacity systems, while vessels in the 35-45 foot range benefit from 57-foot models, and larger cruisers over 45 feet demand the 65-foot maximum stay length configurations.
Beyond raw stay length, consider your boat's displacement and sail area when sizing the furler. Heavier displacement vessels generate greater loads on the furling system, particularly during partial furling in strong winds. The structural engineering of each Furlex model incorporates specific load tolerances that correlate with typical boat sizes, ensuring the drum mechanism and foil extrusion can handle the dynamic forces without compromising operational reliability.
Load Ratings and Wire Compatibility
Wire diameter compatibility directly impacts the furler's load-bearing capacity and installation requirements. The Selden Furlex conversion kits accommodate both 12mm and 14mm wire configurations, with some models offering dual compatibility. Vessels equipped with 14mm forestay wire typically represent larger, heavier boats requiring higher working loads, while 12mm wire systems suit mid-range cruising vessels where weight savings and moderate load capacity provide optimal performance.
The conversion from standard manual systems like the Furlex 400 and 404 to their electric counterparts (400e and 404e) maintains the same wire compatibility while upgrading the drive mechanism. This ensures existing rigging infrastructure remains compatible during the transition to electric operation, reducing installation complexity and associated costs while preserving the original structural load ratings.
Manual vs Electric Drive Systems
Manual furling systems rely on continuous line operation through a drum mechanism, requiring physical effort that increases proportionally with sail size and wind load. The Selden Furlex manual systems provide reliable operation with minimal maintenance requirements, making them suitable for sailors who prefer mechanical simplicity and reduced electrical system dependencies. These systems excel in offshore applications where electrical failures could compromise sail handling capabilities.
Electric furlers like the Selden Furlex 304E series integrate 12V or 24V drive motors that enable push-button sail control from the cockpit. The electric drive systems incorporate torque sensors and automatic stop mechanisms to prevent over-furling damage while providing consistent furling speed regardless of wind conditions. The Furlex conversion kits allow upgrading existing manual systems to electric operation, preserving the original foil and structural components while adding motorized convenience.
Foil Profile and Sail Compatibility
The furler's foil extrusion profile determines sail attachment methods and aerodynamic efficiency when the genoa or jib is deployed. Selden systems utilize precision-engineered aluminum foil sections with integrated sail tracks that accommodate various luff tape configurations. The foil's cross-sectional design affects both the furled sail's profile when stowed and the system's ability to maintain proper sail shape under load.
Different foil profiles accommodate varying sail construction methods, including tape-drive systems and traditional hanked-on configurations through conversion components. The relationship between foil diameter and sail luff length becomes critical when retrofitting existing sails to new furling systems, as improper matching can result in inadequate furling diameter or excessive bulk when the sail is fully furled.
Installation and Retrofit Considerations
Conversion kits like those offered for the Selden Furlex 400 and 404 series enable upgrading existing manual installations to electric operation without complete system replacement. These kits preserve the original foil, drum housing, and structural mounting points while replacing the drive mechanism with electric components. The conversion approach reduces installation time and maintains compatibility with existing rigging configurations, making it cost-effective for boats with serviceable furler foundations.
New installations require careful consideration of electrical routing for powered systems, including control cable runs from the drive unit to cockpit switch locations. The Furlex 304E series incorporates weatherproof electrical connections and corrosion-resistant wiring harnesses designed for marine environments. MAURIPRO's technical specifications provide precise mounting dimensions and electrical requirements essential for proper installation planning and ensuring optimal system performance throughout the furler's operational life.
Brand Overview
| Brand | Models in Stock | Price Range |
|---|---|---|
| Selden | 14 models | $6,600–$8,400 |
Technical Decision Matrix
Compare key specifications across brands and models to find the right fit for your boat and sailing style.
Frequently Asked Questions
What's the difference between manual and electric furlers, and when should I choose electric?
Manual furlers require physical effort to roll and unroll sails using a furling line, while electric furlers like the Selden Furlex 304E use electric motors for effortless operation. Electric furlers are ideal for larger boats, heavy sails, or when you have mobility limitations or frequently sail short-handed. The Selden Furlex 304E models at MAURIPRO can handle stay lengths up to 65 feet, making them perfect for larger vessels. Electric systems also provide more precise sail control and reduce crew fatigue during frequent sail adjustments.
How do I determine the correct wire size (12mm vs 14mm) for my furler conversion kit?
Wire size depends on your existing forestay diameter and boat size - 12mm wire is typically used on boats up to about 40-45 feet, while 14mm wire is needed for larger vessels with higher loads. Check your current forestay wire diameter first, as the conversion kit must match your existing rigging. The Selden Furlex conversion kits at MAURIPRO are available in both sizes, with some kits accommodating both 12mm and 14mm wire options. Always consult your rigging professional or boat specifications to ensure proper sizing for safety and performance.
Can I convert my existing manual Selden furler to electric, and what's involved?
Yes, Selden offers conversion kits that upgrade manual Furlex systems to electric operation, such as the 400 to 400e and 404 to 404e conversion kits available at MAURIPRO. These conversions typically involve replacing the drum unit, adding the electric motor assembly, and installing the electrical controls and wiring. The existing foil and top swivel can usually be retained, making it more cost-effective than a complete replacement. Professional installation is recommended due to the electrical work and critical safety requirements of the forestay system.
What's the maximum stay length the Selden Furlex 304E can handle, and how does this affect my boat choice?
The Selden Furlex 304E models at MAURIPRO can accommodate maximum stay lengths from 50 feet up to 65 feet, depending on the specific configuration. Stay length is measured from the deck connection point to the masthead, not the overall boat length. Longer stay lengths require more robust components and may affect pricing, with the 65-foot models being the most expensive in the range. Make sure to measure your actual forestay length rather than estimating, as exceeding the furler's rated capacity can lead to system failure or safety issues.
Why are Selden Furlex conversion kits more expensive than complete new electric furler systems?
Conversion kits like the Selden 400 to 400e and 404 to 404e models at MAURIPRO cost $7,500-$8,400, while complete Furlex 304E systems range from $6,600-$7,100. The conversion kits are precision-engineered to integrate with existing hardware and maintain the structural integrity of your current rigging setup. They include specialized components designed to retrofit older systems while preserving your investment in the existing foil and upper hardware. Additionally, conversion kits often require more complex engineering to ensure compatibility across different installation years and configurations.
Shipping & Support
MAURIPRO offers free US shipping on orders over $99, a price-match guarantee on all genoa & jib furlers, and dedicated rigging experts available by phone or email. Contact our rigging team for personalized product recommendations.
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Running Rigging · Furling Lines · Blocks · Ask our Rigging Team