Harken 57 mm Zircon Performance Block, Becket

The Harken 57 mm Zircon Performance Block with Becket is engineered for sailors who demand top-tier performance and efficiency. Designed with industrial ceramic ball bearings housed in caged races, this advanced system ensures smooth rotation and minimal friction. By keeping the bearings separated, the block prevents bunching and unnecessary resistance, allowing trimmers to quickly adapt to changing sail conditions. Whether used for high-load applications or fine sail adjustments, this block delivers unmatched responsiveness and durability.

Key Features:

Size: 57 mm sheave for optimal load handling

Material: Industrial ceramic ball bearings for superior efficiency

Design: Caged bearing system prevents friction and bunching

Durability: High-strength construction for long-lasting performance

Versatility: Available in 40 mm and 57 mm sheaves, single and double configurations

Becket Included: Provides added rigging options

Efficiency: Reduces resistance for smooth and precise trimming