Ronstan Rf56100 Series 55 Ratchet Orbit Block - Ronstan Rf56100 Series 55 Ratchet Orbit Block -
Ronstan Rf56100 Series 55 Ratchet Orbit Block -
Call us: 847-478-1450


    Follow us on :  Twister on Facebook Twister on Twitter Twister Blog Twister on LinkedIn Twister on Stumble Upon

  SKU# RF56100 R13230
RONSTAN RF56100 Series 55 Ratchet Orbit Block - Single - Swivel Head - Auto & Manual


RONSTAN RF56100 Series 55 Ratchet Orbit Block - Single - Swivel Head - Auto & Manual

Stock   4 item(s) available  
Manufacturer: RONSTAN     

Mfg Part#: RF56100.    Weight: 1 lb

This product is BRAND NEW.


Series 55 Ratchet Orbit Block™ - Single - Swivel Head - Auto & Manual

Automatic Ratchet Block
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.

Awesome Ratchet Block Holding Power
Quite simply, Ronstan Ratchet Orbit Blocks™ have the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of our sheave cross-hole geometry. Its holding power is up to 21:1, almost double that of our nearest competitior. The unique sheave design has 12 gripping faces which directly resist loaded line movement. Traditional designes have only 8 faces with an angled resistance to line movement. Our Generation 2 design has straight resistance faces which both distribute the load and minimise rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load.

  • Up to 20:1 holding power
  • Smooth easing of sheets
  • High performance cleating
  • Swivel shackle head for unlimited block rotation.
  • Stainless steel shackle head for ultimate durability and compatibility with harsh fixing points.
  • Automatic & manual ratchet block

  • Mainsheet systems and spinnaker sheets on dinghies, sportsboats and small keel boats to 8M(26')
  • Halyard, vang and backstay applications on boats to 8M(26')
  • Spinnaker sheets on sportsboats and small keel boats (lateral lead blocks)

  • Sheave: Hard anodised Aluminium
  • Ball Bearings: High compression strength carbon black Aceetal
  • Frame/Cheeks: Toughened, glass fiber reinforced Nylon
  • Rope Link: UV stabilized, multi-strand impregnated SK75 Dyneema®
  • Head fitting: grade 316 stainless steel

Sheave Ø:55mm(2)
Max. Rope Ø: 10mm(1/2)
B. L.:650kg(1,430lbs)

  • Watts RMS - Max = 27 Watts Maximum
  • Waterproof Rating = Waterproof
  • Service Carrier = NONE
  • Load Equivalence # (LEN) = NONE
  • Frequency = NONE
  • Audio Capable = NONE

  • Product Reviews


    Customer voting


    Add your review here

    Your name:

    Your message:


    Customer Help

    Site Information

    Read Store Reviews Read Store Reviews Premier Store Read Store Reviews

    Recover password
    Contact us
    Privacy statement
    Terms & Conditions
    Site Map
    Accepted payment methods

    Trusted Commerce
    Official PayPal Seal
    Verified Merchant Seal
    Certified store
    Order ID

    Billing phone

    Return Policy
    Request RMA
        Copyright 2002-16 The Twister Group.