Ronstan RF74108 Series 75 Halyard Block

Ronstan RF74108 Series 75 Halyard Block has a two-stage bearing system that 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.

U.V. stabilised acetal sheave, alloy cheeks, high compression strength carbon black acetal ball bearings and 2205 stainless steel pin.

Ideal for use on mainsheet, spinnaker sheet, vang, halyard and backstay applications on boats up to 14m.

FEATURES

• Class leading performance and sleek, contemporary styling
• Excellent dynamic and high static load performance
• Less than half the friction of the nearest competitor
• Suits direct attachment to mainsail headboard for 2:1 halyard
• Removable 8mm (5/16”) screw pin at head
• Acetal roller on head pin to suit spliced line attachment
• Alloy Rope/Wire sheave version also available
• Central hub hole can be used as a becket take-off or tie-up point