Ronstan RF15171 15mm Upright Lead Block – Compact Deck-Mount Block

The Ronstan RF15171 Upright Lead Block with a 15mm sheave is a compact, high-efficiency solution for leading control lines on deck or through spars. Ideal for dinghies and small sailboats, this low-profile block is constructed from a UV-stabilised acetal sheave with 316 stainless steel cheeks, offering excellent strength and resistance to corrosion in marine conditions.

This upright block is designed to be surface-mounted, allowing for clean line direction changes while minimizing friction and maintaining smooth operation. Perfect for halyard leads, control lines, and deflector applications on decks and masts.

Specifications:

• Sheave Diameter: 15mm

• Maximum Rope Diameter: 5mm

• Material: UV-stabilised acetal sheave, 316 stainless steel frame

• Mounting Type: Upright deck-mount block

• Applications: Halyard leads, control lines, dinghy rigging, deflecting blocks

• Features: Lightweight, low-friction, corrosion-resistant, compact design

A smart and space-saving block for performance dinghy sailors. Available now from Barton Marine NZ, your official Ronstan hardware specialist.