The Ronstan Shock is a lightweight, high-load sheaveless block designed for soft attachment, making it an ideal choice for kitesurfing, paragliding, and sailboat rigging systems. With no moving parts, these maintenance-free blocks offer exceptional durability in environments where sand or grit would affect traditional bearings. Their 3-dimensional geometry is engineered to be gentle on lines while maintaining performance under poor lead angles.
Key Features:
- Sold as a pair in grey anodized aluminum
- Optimized for lines from 1.4mm to 5mm (1/16 in. to 3/16 in.)
- Supports up to 1/4 in. webbing
- Maximum Working Load: 175kg (385 lbs)
- Breaking Load: 350kg (770 lbs)
- Dimensions: 22.9mm L x 14.9mm W x 8.5mm H (7/8 in. x 9/16 in. x 5/16 in.)
- Ultra-lightweight at 2.5g (0.1 oz) per unit
- Compatible with soft attachment via splicing or lashing
- Suitable for high-performance dinghy, small sailboat, and kite rigging applications
Product facts
- CT SKU
- CT-103740
- Model / MPN
- RF8080GRY-2
- UPC / GTIN
- 9316800502530
- Package dimensions
- 1" X 1" X 1"
- Package weight
- 0.02 lb
- Specifications
- Color = Grey
Fit-sensitive item: confirm measurements, model numbers, and manufacturer details before ordering. Tug & Tow does not guarantee universal compatibility from a product page alone.
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Shipping & returns
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Fit & compatibility
Fit & compatibility
Review the product title, description, images, dimensions, part numbers, and manufacturer details before purchase. For fit-sensitive items, confirm compatibility with your boat, RV, trailer, vehicle, or equipment.
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Need help choosing?
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