Allen Aluminium Arm Mainsheet Swivel Jammer complete with Ratchet Block

Special Price £171.00 Regular Price £190.00
In stock
The A5166ASSEMBLED suits large dinghies and features an aluminium arm with alloy A..76 cleat and a A2160 Ratchet Block.

Allen Brothers A5166 Aluminium arm mainsheet swivel jammer supplied with an Allen A2160 60mm Pro-Ratchet Block suits large dinghies and the range uses an updated bearing system which has a ball locating groove for smooth rotation whilst preventing the lateral movement of the arm. The angle and height of the cam cleat has been carefully designed to optimise mainsheet jamming and release when required. The angles of rotation can be set to 180, 220 or 360 degrees.

Allen's design team spent many hours of research and development improving the range of their aluminium mainsheet jammers.


  • Includes Allen A2160 On/Off Ratchet Block
  • Fixing Centres: 20 x 20mm
  • Max Load 600Kg
  • Fixing Hole Size: M5
  • Limit rotation to 180, 220 or 360 degrees.
  • A2160 60mm Pro-Ratchet Block for up to 10mm rope
More Information
Country of Origin GB
Frequently Bought Together
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