Allen Brothers 30mm Dynamic Extreme High Load Block with Kicker Key (A2031XHL-873)
The Allen Brothers A2031XHL-873 is a 30mm Extreme High Load block specifically designed for Laser / ILCA vang systems. Featuring an integrated vang key within a compact, high-strength body, it delivers maximum performance in one of the most load-critical control systems onboard.
With a maximum rope diameter of 8mm and a breaking load of 1000kg (rated to the vang key), this block is engineered to handle the increased loads of modern ILCA rigs while maintaining smooth, efficient operation.
Integrated ILCA Vang Key for Compact Strength
Unlike traditional setups, the A2031XHL-873 incorporates the vang key directly into the block body.
This provides:
- Maximum strength in a compact form
- Elimination of shackles or additional attachment components
- Reduced overall system length
- Improved vang geometry and operating range
This integrated design ensures a cleaner, more efficient system with fewer potential failure points.
XHL Hybrid Bearing Technology for Extreme Loads
At the core of the block is Allen’s XHL bearing system, combining:
- Twin rows of stainless steel ball bearings
- Stainless steel axle
- Plain bearing PEEK washer
This creates a hybrid system:
- Low load → operates as a low-friction ball bearing block
- High or static load → transitions towards plain bearing support
The result is a block capable of handling extreme static loads without compromising smooth performance when loads reduce.
Designed for ILCA Vang Performance
The A2031XHL-873 is purpose-built for ILCA kicker systems, offering:
- Reduced effort when pulling on vang
- Improved control in high-wind conditions
- Greater efficiency in load transfer
By reducing friction and increasing strength, it helps sailors achieve more effective sail depowering and finer control.
High Strength Construction
To support demanding loads, the block features:
- CNC machined aluminium side cheeks
- Precision turned stainless steel sheave
- Replaceable vang key
- Compact, integrated design
This ensures durability and reliability in high-performance sailing environments.
Proven Performance in the Field
Used by professional ILCA rigging specialists, the A2031XHL-873 has been recognised for its performance benefits:
- Smoother, freer-running vang systems
- Increased load handling capability for modern rigs
- Improved ease of adjustment under load
Its integrated design also allows sailors to optimise their vang setup without compromising range or efficiency.
A Purpose-Built Solution for ILCA Sailors
The A2031XHL-873 combines extreme load capability, low-friction performance, and a fully integrated vang connection.
For ILCA sailors looking to upgrade their kicker system, it offers a compact, high-performance solution designed to handle modern rig loads while improving control and ease of use.
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