Ronstan Series 55 Ratchet Orbit Block - Single - Swivel Head - Auto & Manual
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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 its 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 cant 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
Max. Rope Ø: 10mm(1/2)
|Package Includes||Ronstan Series 55 Ratchet Orbit Block - Single - Swivel Head - Auto & Manual|
|Condition Description||This item is brand new, unopened and sealed in its original factory box.|
|Warranty||1 Year Direct Manufacturer Warranty|
|Shipping Costs||9.99 Flat|
|Ship From Zip||08721|
|MAP Price (minimum advertised price) This is the lowest price you can advertise this product for (you can always price higher), if 0.00 then there is no MAP price and you can sell for whatever price you choose.||$76.95|
|Returns Accepted||You can return your purchase for up to 30 days, There will be a 20% restocking fee on unwanted items (if you are not returning for an exchange the item is considered unwanted). If the item is defective please contact us to set up an exchange.|