8:1 Muscle Box
 
The Allen muscle box provides unmatched control over your rigging, allowing you to easily tension your jib tension or other standing rigging components with minimal effort.
 
Compact & Durable Design: Engineered for strength and efficiency, our muscle box is crafted from high-grade stainless steel and anodised aluminium, ensuring long-lasting durability even in the harshest marine environments.
 
Mechanical Advantage: This muscle box system offers a significant mechanical advantage, allowing you to apply high tension effortlessly. Perfect for quick, on-the-fly adjustments, especially in changing wind conditions.
 
Easy Installation: Designed for straightforward installation at the base of the mast or a centreboard case. The Allen Muscle Box fits seamlessly into your existing rigging setup. Ideal for dinghies of all sizes, particularly where space is at a premium. The muscle box comes pre-rigged with a 3mm line.
 
Muscle Box spec.
SKUx
Title
fixing hole diameter mm
line diameter mm
maximum working load kg
sheave diameter mm
travel mm
Length mm
Weight g
 
A4233
Muscle Box
5
3
400
23
147
307
254
 
 
 
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