Clamcleat CL257 Auto-Release Racing Mini Aluminium Rope Cleat for 4-6mm Lines
Clamcleat CL257 Auto-Release Racing Mini Aluminium Rope Cleat for 4–6mm Lines
The Clamcleat CL257 Auto-Release Racing Mini Aluminium Rope Cleat provides a smart, reliable way to secure a lifting rudder or centreboard while protecting your gear from impact damage. Designed for ropes from 4–6mm, this innovative cleat securely holds a rope under normal loads but releases instantly if the rudder blade or board strikes the bottom or a solid obstacle — preventing costly damage.
Once tripped, the CL257 can be reset in seconds by simply pushing the cleat back into its base. An adjustable cam allows you to fine-tune the release tension to match your boat size and sailing conditions: tight enough to hold securely under load, yet sensitive enough to release on impact.
Manufactured from high-quality marine-grade aluminium, the CL257 is strong, lightweight, and corrosion-resistant. It can be fitted to almost all lifting tillers and is equally effective for protecting centreboards.
Fitting instructions are supplied with each cleat, including examples showing 2:1 rigging or setups for different rope diameters.
Accessory and related products:
- CL257UG – Replacement cam kit.
- CL222 – Standard cleat of similar size without auto-release function.
- CL211 Mk2 – Alternative cleat with fairlead for general rope control.
The CL257 is the definitive solution for safe, controlled rudder retention — trusted by dinghy and racing sailors worldwide to protect their boats and ensure quick, easy resets after impact.
Specifications
| Material | Aluminium or Acetal Resin |
| Width (mm) | 22 |
| Fixing hole Ø (mm) | 4 |
| Length (mm) | 68 |
| Recommended line - Max Ø (mm) | 6 |
| Recommended line - Min Ø (mm) | 4 |
| Fixing hole spacing (mm) | 36 |
| Height (mm) | 28 |
| Weight (g) | 31 |
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