Ronstan Series 55 Single Orbit BB Block Upright Lead Shackles flexible shaft allows a 90-degree

flexible shaft allows a 90-degree angle

spreading evenly with a cotton cloth

The captive hex nut is a great feature for underwater installations

Customer reviews confirm its effectiveness: John P

Ronstan Series 55 Single Orbit BB Block Upright Lead Shackles flexible shaft allows a 90-degreeThe orbital ball bearing arrangement gives the largest possible bearing race diameter. This maximises load performance. The proven Ronstan 2 stage bearing system features high compression grade acetal ball bearings and a secondary full contact bearing. This gives minimum friction across the full working load range. Applications Mainsheet systems on dinghies, sportsboats and small keelboats to 9m (30ft) Spinnaker sheets on dinghies, sportsboats and