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    75mm Carbo Ratchamatic Flip Flop Block

    Harken 75mm Carbo Ratchamatic Flip Flop Block


    Product description

    Harken 75mm Ratchamatic Flip-Flop Block

    Flip-Flop Blocks

    Small Boat Flip-Flop blocks pivot around the line axis to keep line close to the deck. Hinged construction allows for various lead angles.

    Lightweight, machined 6061-T6 aluminum cheeks pivot on fiber-reinforced plastic chocks. Sheave runs exclusively on a ball bearing system for fast trim and release under any load. Ball bearings, sheave, and sideplates are UV-stabilized with carbon black for maximum protection.

    Ratchamatic® versions roll freely in both directions under low loads and automatically engage a ratchet mechanism as loads increase, giving sailors a holding power of up to 15:1. The ratchet engagement can be adjusted to a higher or lower load depending on the sailor’s strength, sailing style and system usage.


    • Sheave Ø 75 mm
    • Sheave Ø 2 15/16 in
    • Length 143 mm
    • Length 5-5/8 in
    • Width 64 mm
    • Width 2-1/2 in
    • Height 89 mm
    • Height 3-1/2 in
    • Weight 304 g
    • Weight 11 oz
    • Maximum line Ø 12 mm
    • Maximum line Ø 7/16 in
    • Maximum working load 340 kg
    • Maximum working load 750 lb
    • Breaking load 680 kg
    • Breaking load 1500 lb

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