Adjust Sail Power Without Returning to Shore
Unifiber Race Adjustable Outhaul System allows you to fine-tune outhaul tension while sailing, adjusting the sail's profile to suit wind strength, sailing direction and your preferred rig setup.
When the wind drops, releasing outhaul tension increases sail draft, helping generate more power and maintain speed. As the wind picks up, increasing tension flattens the profile, reducing excessive power and improving control.
This is particularly useful in slalom racing, freerace and raceboard sailing, where wind conditions can change throughout a race and sail trim directly affects acceleration, control and efficiency. The system can also benefit performance-oriented freeride and windfoiling setups with sails designed for adjustable outhaul.
Clamcleat CL244 and Pulley System – Smooth Adjustment Under Load
The system uses Clamcleat CL244 rope cleats mounted on both sides of the boom, with ropes running through a pulley arrangement. This allows you to adjust outhaul tension while sailing, without stopping to manually change the rope setting at the sail's clew.
The pulleys reduce the force required to adjust the outhaul, while the cleats securely hold the selected tension. This makes it easier to respond to changing wind conditions without interrupting your session.
For smoother operation, Unifiber recommends using the system together with an Unifiber Outhaul Pulley at the sail's clew.
Four Clamp Sizes – Find the Right Fit for Your Boom
Race Adjustable Outhaul System is available in four versions, each with a different clamp size for attaching the CL244 cleats to the boom. Selecting the correct version depends on the diameter and circumference of the boom tubes at the mounting position.
Before choosing a version, measure your boom at the intended mounting points. Check both the tube diameter and actual circumference, especially if your boom has an oval cross-section or additional grip material.
The CL134 version is also suited to larger-diameter boom sections, including those with thicker grip coverings.
Installation and Practical Considerations
The system can be used with various windsurfing booms, provided the clamps fit correctly. Before installation, check the rope routing and whether the sail's clew can accommodate a suitable outhaul pulley.
Once installed, adjust the rope lengths to suit your boom and secure any excess. Long, loose rope ends can swing while sailing and interfere with manoeuvres.
An adjustable outhaul system is especially useful with sails offering a wide trim range. However, the actual effect of changing outhaul tension depends on the sail's design and the manufacturer's recommended trim settings.
Features
- On-the-Fly Outhaul Adjustment - Adjusting outhaul tension while sailing allows you to change sail draft and power delivery to suit changing wind conditions without returning to shore
- Clamcleat CL244 - Rope cleats positioned on both sides of the boom allow convenient tension adjustments and securely hold the selected outhaul setting
- Pulley-Assisted Adjustment - The pulley system reduces the force needed to adjust outhaul tension, making operation easier while sailing, even when the sail is under load
- Boom-Specific Clamps - Four clamp sizes accommodate different boom tube diameters and circumferences, allowing you to select the correct mounting configuration for your equipment
- Lightweight Construction - Depending on the version, the system weighs between 249 and 272 g, adding relatively little weight to the boom
Set includes
- 2 boom mounting clamps in the selected size (CL105, CL111, CL115 or CL134)
- 2 Clamcleat CL244 rope cleats
- 2 pulleys, 19 mm
- 2 pre-stretched braided polyester ropes – 5 mm × 2.4 m
- 1 Marlow rope – 4 mm × 2.8 m
- Rubber pads for the mounting clamps
- 4 stainless steel mounting screws
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