Ronstan Ratchet Orbit Blocks, Series 55 - Single, Swivel Head, Auto & Manual sealant contemporary styling

contemporary styling

A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads

Headsail and spinnaker sheets

Mounts using 2 x bolts from underside of the deck

Selected models are available with an aluminium sheave which has a deep groove profile specifically made for use with wire

Ronstan Ratchet Orbit Blocks, Series 55 - Single, Swivel Head, Auto & Manual sealant contemporary stylingFeatures: Up to 20: 1 holding power Smooth easing of sheets High performance cleating Swivel shackle head for unlimited block rotation. Stainless steel shackle head and compatibility with sharp fixing points. Automatic & manual ratchet block Application: Mainsheet systems and spinnaker sheets on dinghies, sportsboats and small keel boats to 8m(26ft). Halyard, vang and backstay applications on boats to 8m (26ft). Spinnaker sheets on sportsboats and