Allen Brothers A2021HK 20mm Dynamic Block - Single with Hook  £20.20

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A2021HKIn StockSingle with Hooks
RRP £20.34
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Allen Brothers 20mm Single With Fixed Hook Dynamic Block



The A2020 is our go-to low friction, fast rolling, small pulley. It’s lightweight and strong, making it ideal for dinghies, windsurfing, kitesurfing and anything else that runs smaller diameter lines. 

Our Dynamic range is generally the best choice for applications that require constant sheave movement.

Fixed Hook – A built-in hook to make attachment quick and easy. The hook can articulate, so it’s ideal for outhaul and cunningham systems.

Bearings – Dynamic Blocks feature our patented bearing system which uses twin rows of stainless-steel ball bearings running on a stainless-steel rail. This provides a superior load-carrying ability and longevity when compared to other bearing systems which run on a plastic rail.

Becket – Our 20 & 30mm blocks offer a large central rivet which not only reduces the overall weight but also offers a rope friendly attachment, perfect as a tie-off point when being used in a cascade system.

Length 65mm
Max Line Diameter 6mm
Breaking Load 165kg
MWL 115kg
Weight 17.5g


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