Ronstan Series 55 RT Orbit Block, Single Becket Swivel

Ronstan Series 55 RT Orbit Block, Single Becket Swivel

Product Details

    Tech Info


    Now you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with both auto and manual engagement modes*. In the auto mode of the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers. In manual mode, the ratchet mechanism can be switched on or off as required. This is the preferred mainsheet set-up for may top sailors. Try the block in both modes and see which you prefer - you really can't go wrong.

    • Up to 20:1 holding power
    • Smooth easing of sheets
    • High performance cleating
    • Automatic and manual ratchet block

    • Sheave: Hard anodised Aluminium
    • Ball Bearings: High compression strength carbon black Aceetal
    • Frame/Cheeks: Toughened, glass fibre reinforced Nylon
    • Rope Link: UV stabilised, multi-strand impregnated SK75 Dyneema®

      Part #: RF56110

    Imperial Metric
    Sheave Dia. 2 5/32 in. 55 mm
    Max Rope Dia. 3/8 in. 10 mm
    Max Cable Dia. - in. - mm
    Pin Dia. - in. - mm
    M.W.L. 550 lb. 250 kg.
    B.L. 1650 lb. 750 kg.
    Weight 3 oz 86 gr.