High-strength pivoting lead blocks with cams are used for halyard controls on larger keelboats and as “head knockers” on dinghies and beachcats for sheeting directly from the boom. Hole spacing and rivet size are the same as Classic models, making upgrades easy. Cam reverses for either up or down cleating.

Sheave Ø (mm)
29 mm

Sheave Ø (in)
1 1/8 in

Length (mm)
100 mm

Length (in)
3 15/16 in

Weight (g)
83.7 g

Weight (oz)
2.96 oz

Maximum line Ø (mm)
6 mm

Maximum line Ø (in)
1/4 in

Maximum working load (kg)
68 kg

Maximum working load (lb)
150 lb

Breaking load (kg)
295 kg

Breaking load (lb)
650 lb

Maximum working loads and breaking loads for blocks based on cam strengths.