Ronstan Core Block, Series 100 - Halyard, Clevis Pin Head classicboat The included "U" bolt mount

The included "U" bolt mount ensures secure attachment

The O-ring seal ensures a tight fit

long-life LED'S for optimal visibility while consuming minimal power

Not recommended for supercharged or turbocharged engines

Ronstan Core Block, Series 100 - Halyard, Clevis Pin Head classicboat The included "U" bolt mountA balanced design approach incorporating functionality, performance and style makes the Series 100 Core Blocks the right choice for performance cruising or racing applications. A full contact bearing provides excellent performance across the full working load range with an integrated thrust bearing feature and the resilience to handle high dynamic or static loads. Glass Fibre reinforced nylon sheave, alloy cheeks and stainless fixings complete the