Ronstan Series 45 Core Block - Stand-Up, Swivelling rudder bearing ensuring optimal functionality and safety

ensuring optimal functionality and safety

This dangerous side-to-side rocking lessens control and performance

Perfect for racers starting off on a budget

7⁄8" (23mm) x 268mm threaded alloy tube

SE200: 363mm wide

Ronstan Series 45 Core Block - Stand-Up, Swivelling rudder bearing ensuring optimal functionality and safetyCore Blocks are a true all round solution. A tuned 2 stage bearing system 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. Acetal sheave, alloy cheeks and stainless fixings complete the durable package. For reliability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for