Ronstan Sail Slide - Internal Track - 16mm (5/8") Wide x 32mm(1-1/4") Long

The Ronstan Sail Slide - Internal Track - 16mm (5/8") Wide x 32mm (1-1/4") Long is a precision-engineered sailboat hardware component designed for mainsail and jib control on small to mid-sized cruising and racing vessels. This internal track slide sits within your existing mast or boom track system, providing smooth, repeatable adjustment of sail position during tacking, jibing, and point-of-sail changes. For any serious sailor, whether you're racing dinghies, coastal cruisers, or keelboats, reliable slide hardware is non-negotiable—it's the silent partner that makes efficient sail trim possible and keeps your crew safe in variable conditions.

Built by Ronstan, an Australian marine engineering leader with decades of saltwater heritage, this sail slide features internal ball-bearing rollers that glide within 16mm-wide tracks with minimal friction and zero binding. The 32mm length provides ample bearing surface and lateral stability, preventing the sail from lifting or pivoting under load. Manufactured from hardened stainless steel or reinforced plastic (depending on specification), the slide withstands UV exposure, salt spray, and the constant micro-movements that characterize active sailing. The internal track design—as opposed to external slides—offers a streamlined profile that reduces wind resistance and drag while protecting the bearing mechanism from contamination and impact damage.

This slide is ideal for cruising sailors who demand durability and low maintenance, as well as competitive racers seeking weight reduction and smooth motion. Installation requires a compatible 16mm internal track system already present on your mast or boom; verify your track width and type before ordering. A single slide handles one sail attachment point, so mainsail systems typically require multiple slides spaced evenly along the luff. Whether you're upgrading worn hardware, repairing a single damaged slide, or building a new rig from scratch, Ronstan's CW55000 model delivers the proven performance that keeps sails flying true mile after mile.