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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 |