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Ronstan 30 mm Orbit Cheek Block

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Current Stock:
Single Block
30 mm

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Ronstan 30 mm Orbit Cheek Block
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The Ronstan 30mm Orbit block is small and compact. Used on high performance boats, these blocks are used by the best and perform for the best. Made from advanced fiber and polymer technology, these blocks are ten times stronger than steel, yet more lightweight. This cheek block version is great for creating turning points on the deck for sheeting or control lines.

  • Lightweight.
  • Highest working load in its class.
  • Secure, versatile and secure attachment.
  • Low profile and compact.
  • Base suits curved mounting base.


  • Mainsheet systems and spinnaker sheets on dinghies to 5m (16ft).
  • Halyard, vang and backstay applications on boats to 5m (16ft).
  • Control line applications on larger yachts.


  • Sheave: High compression strength carbon black Acetal.
  • Ball Bearings: High compression strength Acetal.
  • Frame/Cheeks: Toughened, glass fibre reinforced Nylon.
  • Link: UV stabilised, multi-strand impregnated SK75 Dyneema.


  • Sheave - 30 mm
  • Max. Rope  - 8 mm
  • M.W.L. - 300 kg
  • B. L. - 600 kg
  • Weight - 21 g

Product Reviews

Shipping & Returns

Delivery Info: Enjoy Free Standard Shipping on most orders* to the Continental United States over $99. Our Standard Shipping method utilizes USPS, UPS, and FedEx to send packages near and far. Oversize/Freight shipping (where applicable), Expedited Shipping (where available), and rates to other destinations will be calculated at checkout.

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Returns Info: Your 100% satisfaction is our goal - we want you to love your sailing gear, but if something doesn't work out, we accept returns on most new, unused items*. Returns can be made within 366 days (1 year + 1 day) of your original order date. Exceptions include (and are not limited to) cut line, Rig Shop products, special order items, numbered sailors, and items used or worn sailing.

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