Zircon Catamaran Mainsheet System
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HARKEN Zircon Catamaran Mainsheet System
This compact Zircon ceramic bearing mainsheet system represents a collaborative breakthrough in high-performance sailing hardware. The previous generation GP mainsheet system became the standard among top-level catamaran sailors worldwide. These elite sailors challenged Harken to deliver the same exceptional performance in a lighter, more compact package. The result: a system that shrinks everything except capability.
At the heart of the system are new 40mm Zircon sheaves that reduce aero-disruption by 30% compared to previous designs, while clearing the tiller more easily. The industrial ceramic ball bearings are mounted inside caged races that keep bearings separated so they never bunch, touch, or stop each other—delivering the most efficient small-boat block performance Harken has engineered.
Key Features
- Compact design with 40mm Zircon ceramic sheaves
- 30% less aero-disruption for improved aerodynamics
- Interchangeable Harken Power 3 ratchet sheave for weather-dependent configuration
- Customizable purchase ratios: 10:1, 11:1, or 12:1
- Infinitely adjustable cam cleat angle for personalized sailing style
- Extended head post enabling maximum mast rake with proper strop length
- Sheaves can interlock for enhanced mast rake capability
- Ceramic bearing construction for superior durability and low-friction performance
The system is ideal for competitive catamaran racing where precise, quick adjustments are crucial for superior performance. Designed for high-performance and foiling catamarans like the Nacra 17 and F18, it maintains elite functionality while offering lighter weight and compact form factor.
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