Hand hold loaded lines and control release using 57mm Carbo Ratchets. Machined aluminum sheaves have eight facets to hold line securely with 10:1 advantage when the block is ratcheting. Recessed switch allows on/off control for the ratcheting mechanism. For the ultimate system mount a switchable ratchet in the cockpit and a Ratchamatic on the boom to allow double holding power in heavy air and to ensure the mainsheet runs out freely in light air. Use for main, jib and spinnaker sheets, traveler controls and foreguys. Sheave diameter is 2 1/4" (57mm).
The H2137 Cheek comes with RH fasteners and mounting pad. The load ratings for the blocks with Cams are based on the cam strengths.