CAMO Stands for Chainline and Material Optimization. Available in various chainlines and spider configurations, CAMO spiders allow the use of previously unavailable chainring styles, materials and chainline in a lightweight, modular and customizable package. These spiders are only compatible with CAMO rings and bolts. Made from Aluminum alloy for light weight. Includes 5 black chainring bolts. Designed for 52mm chainline.