Ronstan RF46100M 40mm Manual Ratchet Block – Swivel Head Sailing Pulley

The Ronstan RF46100M Manual Ratchet Block with a 40mm sheave and swivel head is designed for sailors who demand precise control over line tension in dynamic sailing conditions. With a manual on/off ratchet mechanism, it offers the flexibility to switch between free-running and ratchet-assisted modes as needed.

Built for high-performance dinghies and keelboats, this block features directional grip, ball bearing sheave for smooth operation, and reinforced glass fibre composite cheeks for strength and durability. The swivel head allows optimal line alignment under load, making it ideal for mainsheet and spinnaker sheet systems.

Specifications:

• Sheave Diameter: 40mm

• Max Rope Diameter: 10mm

• Materials: Acetal sheave, stainless steel fittings, reinforced nylon cheeks

• Features: Manual ratchet engagement, swivel head, ball bearing operation

• Applications: Spinnaker sheets, mainsheet systems, jib control lines

• Function: Manual ratchet switch for adaptable grip and performance

A top choice for racers and cruisers who value control and versatility. Available now at Barton Marine NZ, your trusted supplier of Ronstan ratchet blocks and performance sailing gear.