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Ratchet Blocks

Selden Ratchet Blocks provide extra control and prevent line slippage in high-tension applications like mainsheets and genoa sheets. Featuring an adjustable ratchet mechanism, they offer smooth, low-friction performance with customizable settings for different loads.

Key Features

  • Adjustable ratchet for line control
  • Smooth, low-friction performance
  • Ideal for high-tension systems

Selden Ratchet Blocks are perfect for sailors seeking reliable, controlled trimming in demanding conditions. They are excellent for dinghy main or spinnaker sheets.

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Seldén 45mm Automatic Rathet Block
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Seldén

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45mm Automatic Ratchet Block

These blocks are designed with lightweight ø5 mm Delrin ball bearings and are available either with a composite sheave or an aluminium sheave. More grip and the ability to cope with relative thin lines. The sheave automatically changes from free-turning to ratchet when the load increases - the sailor decides when the automatic ratchet kicks in. The switch-over point is set using an allen key to adjust a screw inside the sheave -fast, simple, precise.

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45mm Automatic Aluminium Sheave Ratchet Block
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Seldén

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45mm Automatic Aluminium...

These blocks are designed with lightweight ø5 mm Delrin ball bearings and are available either with a composite sheave or an aluminium sheave. < br />More grip and the ability to cope with relative thin lines. The sheave automatically changes from free-turning to ratchet when the load increases - the sailor decides when the automatic ratchet kicks in. The switch-over point is set using an allen key to adjust a screw inside the sheave - fast, simple, precise.

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