Main halyard locks are ideal at guaranteeing your mainsail is always hoisted to the measurement band, with the hoist position unaffected by mast bend. The lock also reduces mast tip compression making the fitting a 'must' for any champion.

There are various options, with the alloy lock used for most dinghies. Designed for 2mm wire, now available in its own cassette for simple fitting. The larger lock is better suited to small keelboats, taking a 2.5mm or 3mm halyard and available in stainless steel, or titanium for the ultimate in weight saving and strength. The small v-lock is ideally suited to external halyards for Europes, Finns, Splashes and OKs.