Synchro Footblock with Jammer

Deck-Level Control with Confidence

The Lewmar Synchro Footblock with Jammer is engineered to provide precise, secure line handling where control, safety, and efficiency are paramount. Designed for performance cruising and racing yachts, it combines smooth load redirection with positive line locking in a compact, deck-mounted solution that supports confident sail handling in high-load environments.

Integrated Footblock & Jammer

Design The fixed footblock delivers a stable, predictable lead for heavily loaded control lines, maintaining accurate alignment and minimising unwanted movement under tension. The integrated jammer allows lines to be locked off quickly and securely once trimmed, reducing reliance on secondary hardware and helping maintain clean, organised deck layouts, particularly valuable in high-workload cockpit or deck areas.

Synchro Low-Friction Performance

Built around Lewmar’s advanced Synchro bearing technology, the footblock is designed to minimise friction during trimming and easing. Smooth rope flow reduces handling effort and energy loss, enabling more accurate sail adjustment and improved ergonomics when managing loaded lines over extended periods.

Marine-Grade Construction

Manufactured from durable, marine-grade composite materials, the Synchro Footblock with Jammer is built to withstand sustained loads, shock forces, and constant exposure to harsh marine conditions. Reinforced structures and precision-engineered components ensure long-term reliability, wear resistance, and consistent performance offshore.

Controlled, Reliable Operation

The combination of low-friction sheave geometry and positive jammer engagement allows crews to trim lines smoothly and lock them securely with confidence. This balances of free movement and controlled holding enhances safety, reduces fatigue, and supports precise sail handling during manoeuvres and repeated adjustments.

Installation & Application

Ideal for mainsheets, traveller controls, and deck-level control lines, the Lewmar Synchro Footblock with Jammer integrates seamlessly into modern performance-focused deck layouts. Suitable for both new builds and high-quality refits, it delivers a professional-grade solution backed by Lewmar’s long-standing expertise in sail-handling and deck hardware.