Ronstan Series Series 40 Ball Bearing Orbit Block™, Auto Ratchet, RF46100
AUD $99.95
AUD $132.48
Ronstan
Ronstan Series 20 Ball Bearing Lashing Orbit Block™, RF25109
Ronstan
AUD $17.95
AUD $21.97
(You save
AUD $4.02
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The Ronstan Series 20 Ball Bearing Lashing Orbit Block™ (RF25109) is a lightweight, compact, and high-performance solution for small boat and control line applications. Designed for dinghies, foiling craft, and high-load control systems, this lashing-style block delivers maximum strength with minimum weight.
Built with glass-reinforced polymer cheeks and stainless steel ball bearings, the Series 20 Orbit Block™ ensures smooth, low-friction operation under load. The lashing head design allows flexible attachment to almost any point on deck or rig, reducing metal fittings and saving weight. Ideal for vang, cunningham, outhaul, and spinnaker control lines, this block performs flawlessly in dynamic racing conditions.
Compact yet incredibly strong, the Ronstan RF25109 represents the ultimate in lightweight rigging efficiency, trusted by performance sailors worldwide.
Single sheave lashing block with becket hub.
FEATURES
Integrated stainless steel hub to accept lashing attachment and through-sheave becket.
Suits up to 4mm (5/32”) lashing.
Includes 750 mm (30") x 1.7mm (1/16") diameter lashing cord.
Specifications
| Type of Block | Single |
|---|---|
| Sheave diameter (mm) | 20mm |
| B.L. (kg) | 550 |
| M.W.L. (kg) | 250 |
| Max. Rope diameter (mm) | 6 |
| Weight (g) | 9 |
| Sheave Material | Acetal |
| Notes: | Block must be lashed through hub. The supplied lashing line must have three passes through head and hub to achieve rated load. |
