RCB - Ball bearing mainsail cars
"Round circulating ball bearings". Sold as a complete kit with tracks to be fitted to existing mast and cars with Torlon ball bearings. Very low friction hoist and dousing of the main sail. Ideal for Seldén E- and D-sections but fits also masts of other brands.
Track width 22 mm. Suitable for boats up to approx. 45'.