The Micro CB track is fully-saturated, Hardkote-anodized for maximum durability and scratch-resistance. The proportionately wide track base protects cored decks and adds stability to the track. An indent on the bottom profile makes the track easy to install on curved surfaces (such as booms) without rocking. Fastener holes fit both 4 mm metric and #8 imperial screw sizes. Use low-beam track when it can be supported at each fastener hole; high-beam track is appropriate when spanning a cockpit or other unsupported area. Can be bent to your specifications, please call for details. Maximum mainsail area for mono-hulls: 110 ft (end boom sheeting); 85 ft (mid-boom sheeting) Maximum mainsail area for multi-hulls: 85 ft (end boom sheeting); 70 ft (mid-boom sheeting) Min. bend radius 2707 Low-Beam Track: 1.07m (42"); first fastener hole is 25mm (1") from the end of the track Splice link is used to align low-beam track during installation of multiple sections