Ronstan RF8080R-2 Sheaveless Block 3/16" Line 1/4" Webbing Red Pair

The Ronstan RF8080R-2 SHOCK is an ultra-lightweight, sheaveless block designed for high-performance sailing, kitesurfing, paragliding, and control line applications. With no moving parts, this innovative block eliminates traditional bearings and sheaves, providing exceptional durability in harsh environments where sand, salt, and grit would compromise conventional systems.

Key Features:

• Ultra-lightweight design at just 2.5g (0.01 oz) per block
• Accepts lines from 1.4mm to 5mm (1/16" to 3/16") diameter
• Compatible with high-tech uncovered braids and traditional double braids
• Anodized aluminum construction for corrosion resistance
• Maximum working load of 175kg (385 lbs), breaking load of 350kg (770 lbs)
• Elongated attachment aperture ideal for soft attachment via splicing or webbing
• Gentle 3-dimensional geometry minimizes line wear
• Maintenance-free operation with no bearings to service
• Color-coded red for easy identification
• Sold as a pair

Applications:

Ideal for dinghy and small sailboat rigging including tweakers, vangs, trapezes, cunninghams, barber haulers, and kite bridles. Also suitable for lazy jacks, sail covers, tie-downs, kitesurfing control lines, paraglider systems, and various deflection or purchase systems where weight savings and reliability are critical.

Specifications:

• Rope diameter range: 1.4mm-5mm (1/16" - 3/16")
• Webbing width: 1/4"
• Height: 8.5mm (5/16")
• Width: 14.9mm (9/16")
• Length: 22.9mm (7/8")
• Material: Anodized aluminum