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Quick Specs
Color: Black
Description
Low Friction Ring - 21mm Hole
Low Friction rings can be used as a lightweight alternative to a block in some applications. They are best suited for systems requiring relatively small line deflection angles, or for high static loads.
The design achieves a nicely rounded internal profile for smooth control line trim under load, and a deep external groove to retain the rope securely within the large shoulders when spliced into a loop.
Features:
Low Friction rings can be used as a lightweight alternative to a block in some applications. They are best suited for systems requiring relatively small line deflection angles, or for high static loads.
The design achieves a nicely rounded internal profile for smooth control line trim under load, and a deep external groove to retain the rope securely within the large shoulders when spliced into a loop.
Features:
- Compact & lightweight
- Low friction
- Large shoulder secure allowing for rope lashing
- Durable
- Simple & reliable design
- Low maintenance
Quick Specs
Color = Black
Accessories
No accessories listed for this product.
Specifications
| SKU | RF8090-21 |
| UPC | 9316800525966 |
| Brand | Ronstan |
| Category | Sailing |
| Country of Origin | CN |
| Weight | 0.1 |
| Dimensions | 3 x 2 x 1 |
| Status | Active |
| Last Synced | 10/7/2026, 2:04:26 AM |
Compliance & Shipping
Returnable
Product Literature
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Frequently Bought Together
Compare Key Features
| Feature |  Ronstan Low Friction Ring - 21mm Hole CURRENT |  Davis Round Sail Track Stop |  Ronstan Drain Plug Only - Plastic Nylon |  Davis Tiller Tamer |  Ronstan Sister Clip - Stainless Steel - Large |
|---|---|---|---|---|---|
| Price | $36.85 | $14.44 | $8.06 | $46.74 | $25.78 |
| Brand | Ronstan | Davis Instruments | Ronstan | Davis Instruments | Ronstan |
| Condition | New | New | New | New | New |
| Availability | In Stock | In Stock | In Stock | In Stock | In Stock |
| Weight | 0.1 | 0.1 | 0.01 | 0.32 | 0.3 |
| Dimensions | 3 x 2 x 1 | 6 x 5 x 1 | 4 x 2 x 1 | 5 x 5 x 2 | 2 x 1 x 1 |
| SKU | RF8090-21 | 2350 | RF738 | 2205 | RF2665 |
| Country | CN | UNITED STATES | INDONESIA | CHINA | AUSTRALIA |
| View Item | View Item | View Item | View Item | View Item |
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$36.85