60MM BLOCK - DOUBLE

Allen A2063 — 60mm Dynamic Double Block with Becket for Keelboats & Catamarans

The Allen A2063 60mm Dynamic Double Block with Becket is a high-performance ball bearing block engineered to eliminate friction and allow rope to run at maximum speed. Designed for keelboat and catamaran sailing, this double block with integrated becket covers the full spectrum of rigging applications — from jib sheet and mainsheet systems to backstay tensioning and everything in between. The A2063 is the ideal choice for any purchase system requiring maximum mechanical advantage with minimal friction, delivering smooth, fast and reliable rope travel under the highest loads.

Patented Bearing System — At the heart of the A2063 lies Allen's industry-leading twin-row stainless-steel ball bearing system, running on a stainless-steel rail. This patented design delivers exceptional load-carrying capacity and outstanding long-term durability, outperforming all conventional bearing systems currently available on the market — a decisive advantage when pushing hard in demanding offshore or inshore racing conditions.

Removable Swivel Lock — The A2063 features a removable swivel lock moulding, offering two distinct modes of operation. When installed, the attachment shackle locks in precise 90-degree orientations for fixed-lead applications. When removed, the shackle spins freely for complete rotational versatility — making this block one of the most adaptable double blocks available for high-load competitive sailing.

Central Becket — Unlike a standard hole becket, the A2063 features a dedicated central becket positioned between the two sheaves. This intelligent design allows for easy and clean rope termination directly at the block, while simultaneously keeping the load perfectly centralised between the sheaves. The result is a more balanced, efficient and reliable purchase system — reducing wear on both the block and the rope, and ensuring optimal performance in cascade systems, mainsheet tackles and high-load purchase arrangements.

Built for speed, engineered for precision — the Allen A2063 60mm Dynamic Double Block with Becket is the definitive high-load purchase block for keelboat and catamaran sailors who demand peak performance and total reliability from their deck hardware.