Allen Brothers 20mm Articulating Double
Pickup available at 1830 East Interstate 30
Usually ready in 24 hours
Shipping and Delivery
Free shipping for orders of $98 or more (US Continental)
- Free shipping for orders of $750 or more (International)
- Add 3 business days to the standard shipping time for USPS deliveries.
- UPS and FedEx Ground usually take 2 to 5 business days for in-stock orders.
- UPS and FedEx deliver on Saturdays only for Friday overnight shipments, which may incur an extra
charge. - Orders that apply for free shipping will be delivered between 8 and 10 business days.
- International customers will be responsible for any applicable import duties,fees, or taxes.
- Oversized items like whisker poles, spinnaker poles, and tracks over 7 feet require freight shipping, with an estimated cost of $500 depending on the destination.These orders must be delivered to a
commercial address, such as a marina, yacht club, or boatyard where your sailboat is located.
A recipient must be present to sign for the delivery upon arrival,For more info, Click Here.
Allen Brothers 20mm Articulating Double
20mm Double Dynamic Block - Articulating
The 20mm Articulating Double Dynamic Block is a unique design that allows each block to articulate independently, ensuring perfect alignment with the rope angle for smooth and efficient operation.
Lightweight, strong, and low-friction, it is ideal for dinghies, windsurfing, kitesurfing, and other applications using smaller diameter lines. Part of our Dynamic range, it is best suited to systems requiring constant sheave movement.
Features:
- Unique articulating double-block design for optimal rope alignment
- Low-friction, fast-rolling performance
- Lightweight yet strong construction
- Patented Dynamic Bearing System with twin rows of stainless-steel ball bearings running on a stainless-steel rail for superior load capacity and durability
- Ultra-Strap Technology provides enhanced strength, wear resistance, and rope-friendly performance
- Integrated Becket with a large central rivet, offering a lightweight and rope-friendly attachment point for cascade systems
- Ideal for high-performance sailing and watersports applications using smaller diameter lines
Technical Description
| Accessories | None |
| Bearing Type | Dynamic |
| Configuration | Double |
| Maximum Line Diameter | 6 mm |
| Breaking Load | 600 kg |
| Length | 48 mm |
| Sheave Diameter | 20 mm |
| Maximum Working Load | 200 kg |
| Weight | 27 g |
Allen Brothers 20mm Articulating Double
20mm Double Dynamic Block - Articulating
The 20mm Articulating Double Dynamic Block is a unique design that allows each block to articulate independently, ensuring perfect alignment with the rope angle for smooth and efficient operation.
Lightweight, strong, and low-friction, it is ideal for dinghies, windsurfing, kitesurfing, and other applications using smaller diameter lines. Part of our Dynamic range, it is best suited to systems requiring constant sheave movement.
Features:
- Unique articulating double-block design for optimal rope alignment
- Low-friction, fast-rolling performance
- Lightweight yet strong construction
- Patented Dynamic Bearing System with twin rows of stainless-steel ball bearings running on a stainless-steel rail for superior load capacity and durability
- Ultra-Strap Technology provides enhanced strength, wear resistance, and rope-friendly performance
- Integrated Becket with a large central rivet, offering a lightweight and rope-friendly attachment point for cascade systems
- Ideal for high-performance sailing and watersports applications using smaller diameter lines
Technical Description
| Accessories | None |
| Bearing Type | Dynamic |
| Configuration | Double |
| Maximum Line Diameter | 6 mm |
| Breaking Load | 600 kg |
| Length | 48 mm |
| Sheave Diameter | 20 mm |
| Maximum Working Load | 200 kg |
| Weight | 27 g |


