Sheave ø57/10-13, Composite, Mast Component Stainless steel Sheave L-MIN: 167 mm

L-MIN: 167 mm

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

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

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

Sheave ø57/10-13, Composite, Mast Component Stainless steel Sheave L-MIN: 167 mmComposite 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