Mainsheet Jammer - Allen

Allen Mainsheet Jammers have had many hours of research and development to give the best possible product. 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.