Seldén Furlex jib furling systems and spare parts for dinghies and keelboats, covering the Furlex 20S for ø3 mm headstays, the Furlex 30S for larger dinghies needing higher load capacity, and the Furlex 40S for ø4 mm headstays, with complete kits and individual replacement components.
Good. The catalogue confirms that the Furlex 30S is a higher load version of the Furlex 20S, suited to larger dinghies and keelboats where the 20S is marginal. It also confirms that the 30S top swivel can be mixed and matched with the Furlex 20S top swivel. The 30S does not appear to have a complete kit SKU in the store — only the drum (539-490-01R) and shared components are listed. The store appears to sell the 30S as components rather than a complete kit. Here is the corrected copy: COLLECTION TITLE: Furlex Jib Furling Systems and Spare Parts SHORT INTRO:Seldén Furlex jib furling systems and spare parts for dinghies and keelboats, covering the Furlex 20S for ø3 mm headstays, the Furlex 30S for larger dinghies needing higher load capacity, and the Furlex 40S for ø4 mm headstays, with complete kits and individual replacement components.
How to choose
The Furlex range for dinghies and small keelboats covers three systems. The Furlex 20S is designed for ø3 mm headstays with a maximum jib luff perpendicular of 2500 mm and suits the majority of smaller dinghies. The Furlex 30S is a higher load version of the 20S, suited to larger dinghies and keelboats where the 20S is marginal on load or rope capacity. The Furlex 40S is designed for ø4 mm headstays with a maximum luff perpendicular of 3000 mm and suits larger boats where headstay diameter and jib size step up accordingly. The systems are not interchangeable. Confirm your headstay diameter and jib luff perpendicular before ordering.
The Furlex 20S and 40S are available as complete kits. The Furlex 20S kit includes the top swivel, drum and furling line. The Furlex 40S kit includes the top swivel, halyard swivel, drum, tack fitting and furling line. The Furlex 30S is available in this collection as individual components rather than a complete kit. Note that neither kit includes a forestay wire.
If a single component has failed, each part is available individually. The top swivel is shared across the 30S and 40S and can also be mixed and matched with the Furlex 20S top swivel. The halyard swivel and tack attachment fitting are shared across the 30S and 40S.
The tack attachment fitting converts the system from a conventional furler to a permanent forestay arrangement where the forestay remains attached to the drum unit and the foresail tack can be disconnected separately. This suits boats where the jib is removed frequently but rig tension must be maintained.
Before fitting any furling system, confirm suitability with your boat manufacturer or class association. Fitting a furler affects standing rigging loads and may not be permitted under class rules.
What's in this collection
The Furlex 20S complete system (539-455-12) suits ø3 mm headstays up to a maximum luff perpendicular of 2500 mm. The kit includes top swivel, drum and furling line. All structural parts are stainless steel with a glass fibre reinforced polyamide composite drum and cover. An optional top swivel guide separates the jib from the forestay to prevent the forestay twisting with the jib luff.
The Furlex 30S is a higher load version of the 20S suited to larger dinghies and keelboats where the 20S is marginal. It is available in this collection as individual components: the lower swivel drum with orientable fairlead and 5mm stainless ball bearings (539-490-01R) and the shared top swivel (539-480-01R).
The Furlex 40S complete system (539-470-11) suits ø4 mm headstays up to a maximum luff perpendicular of 3000 mm. The kit includes top swivel, halyard swivel, drum, tack fitting and furling line. The tapered top swivel fits narrow forestay angles and uses stainless ball bearings to prevent halyard twist.
Furlex 20S spare parts include the drum with furling line (539-455-03R), the standard top swivel with 4 mm ball bearings (539-450-01), the top swivel with integrated guide (539-450-02) and the guide sold separately for retrofitting to an existing standard top swivel (539-460-01R).
Furlex 40S spare parts include the lower swivel drum with orientable fairlead (539-470-01R).
The shared Furlex 30S/40S top swivel (539-480-01R) has a high-strength stainless structure, composite cover and 5 mm stainless ball bearings.
The halyard swivel for Furlex 30S/40S (539-487-01R) allows the headsail to furl around a tensioned forestay. The forestay wire passes through the centre of the swivel. To hoist, the halyard connects to the HMPE loop and the sail connects to the shackle.
The tack attachment fitting for Furlex 30S/40S (539-478-01R) converts the system to a permanent forestay arrangement where the foresail tack can be disconnected while the forestay stays attached to the drum.
The locking adhesive for Stalok terminals (312-305) secures Stalok wire terminals and other screw attachments within the furling system installation.
Dinghy class applications
The Furlex 20S, 30S and 40S are used as standard equipment on a wide range of dinghies, small catamarans and keelboats. Class rules on whether a furling jib is permitted in racing vary. Confirm with your class association before fitting.
