Ronstan Core Block, Series 100 - Double, Universal Head 46-807151A12 sleeves to step down size

sleeves to step down size available on request

Designed to fit externally onto all popular tubing

Fibreglass entry edge rods for easy opening (rope bags)

1/4" Keyway with 3/8 Bolt

1 x Spring

Ronstan Core Block, Series 100 - Double, Universal Head 46-807151A12 sleeves to step down sizeA 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