Finding that your line doesn't fit a new or borrowed, unfamiliar extension can be frustrating—especially if the wind is blowing, and you're in a rush to get out there! So, is there a thickness of line that will do the job across-the-board? The answer is yes. 4.0-Dyneema 4.0mm™ is the best—if your extension cleats are compatible. Here's why…
Key Takeaways:
- Dyneema 4.0mm is the best all-around downhaul line.
- Most extensions have 23-mm diameter pulleys.
- Dyneema® and Formuline™ are top choices for durability and performance.
- Regular maintenance and high-quality lines are crucial for safety and longevity.
Understanding Pulley, Line, and Cleat Size
Compatibility and Standard Sizes
Most windsurfing mast extensions have wheels with a 23-mm diameter. This makes them compatible with the standard 4.0-mm polyester line supplied with most extensions. Unifiber supplies 4.0-mm polyester on standard models, 4.0-mm pre-stretched polyester on HD models, and 4.0-mm Dyneema® on the Élite line.
Special Considerations
Some extensions and cleats will not accept anything less than 4-mm rope. Others work best with the 'pro' favorite of 4.0-mm Dyneema® or Marlow Formuline™. The distance between the pulleys and the block on various models also affects what rope works without having to be jammed through.
Choosing the Best Downhaul Line
Quality Matters
Buying the best quality line, such as Spectra or Dyneema®, is the best and most economical option over time. Sea water is savage as the dried salt crystals act as tiny shards of glass, causing significant wear in all fabrics or yarns that are not rinsed or soaked enough after immersion in the ocean.
Recommendations
We recommend 4.0-mm line as the best overall solution if you are buying in bulk and expect a stock of rope to last you over some time and for outhaul and inhaul use as well. Whatever the purpose, good quality rope will always pay dividends over time.
Specific Solutions
If you are specifically wanting the best downhaul solution—and your extension cleats will happily grip 4.0-mm rope—then buy the Dyneema 4.0mm for the best effect.
Maintenance Tips
Lubrication and Care
One other easy downhauling tip is to use 'dry' lubricant silicon for the pulleys on your extensions and booms to aid tensioning and prolong their lifespan. Winches also help, of course!
Knot Safety
Note: Beware how you tie stop knots with Dyneema®, as that slippy quality means they can easily come undone and cause a potentially dangerous or painful situation should they loosen while rigging, or out on the water! Always use a 'figure-of-eight' knot if you can—and pre-tighten it well.
Conclusion
Choosing the right downhaul line can make a significant difference in your windsurfing experience. Whether you opt for Formuline™ or Dyneema®, ensuring compatibility and regular maintenance will keep your gear in top condition. Happy windsurfing!
