Ronstan Shock Sheaveless Block, 3/16 in. Line, 1/4 in. Webbing, Red, Pair (RF8080R-2)

The Ronstan Shock is a lightweight, high-load sheaveless block designed for soft attachment, making it an ideal choice for control line deflections and purchase systems in sailing, kitesurfing, and paragliding applications. With no moving parts, this durable, maintenance-free block is built to withstand harsh environments where grit and sand would typically compromise traditional bearing systems. The 3-dimensional geometry is engineered to handle poor line leads while remaining gentle on your rigging.

Key Features:

• Sold as a pair
• Compatible with lines from 1.4mm (1/16 in.) up to 5mm (3/16 in.)
• Designed for 1/4 in. webbing attachment
• Ultra-lightweight construction at 2.5g (0.01 oz) per unit
• Durable, impact-resistant anodized aluminum finish
• Maximum Working Load (M.W.L.): 175kg (385 lbs)
• Breaking Load (B.L.): 350kg (770 lbs)
• Dimensions: 22.9mm (7/8 in.) L x 14.9mm (9/16 in.) W x 8.5mm (5/16 in.) H

These blocks are ideal for various rigging needs including tweakers, vangs, trapezes, cunninghams, barber haulers, and kite bridles, as well as utility uses on larger boats such as lazy jacks, sail covers, and tie-downs.