Sheave ø57/10-13, Composite, Mast Component Stainless steel Sheave Typically used for the control

Typically used for the control line of a main sheet track system

The Seldén BBB20 Triple/Becket block is a 20mm ball bearing block designed for control lines on dinghies and keelboats

The System 30 Self-Tacking Double Car is designed for Seldén 30 mm Standard track Self-tacking system (not for High Beam track)

Purchase: 3 (N:1)

Sheave ø57/10-13, Composite, Mast Component Stainless steel Sheave Typically used for the controlComposite sheave used mainly for boom ends, Rodkicker 05 10 and Single line reef systems. This sheave works for both line and wire ropes. Diameter: 57 mm Hole size: 10 mm Width: 13 mm Max line size: 12 mm Max rope wire size: 10 4 mm