Selden 45mm Auto Ratchet Block

Selden 45mm Automatic Ratchet Block Featuring 5mm Delri Ball Bearings and 45mm aluminium sheave. The sheave automatically changes from free tuning to ratchet when the load increases. The sailor decides when the automatic ratchet kicks in. The switch-over point is set using a allen key to adjust a screw inside the sheave. Fast, simple, precise.

Use for: Dinghy main sheets. Spinnaker sheets.

Sheave dia: 45 mm

Max line size: 8 mm

Pin dia: 4 mm

Shackle dia: 4 mm

Safe working load: 150 kg

Breaking load: 300 kg Weight: 64 g