150-2040 - Cd 55 Trk Xing 11.25-Deg - N ScaleCode 55 Track w Nickel Silver Rail & Brown Ties 11. 25 Degree Crossing Atlas N Scale Code 55 Flex Track features nickel silver rail and injection molded brown ties with wood grain detail. It has the same reliability and durability as popular Code 80 track, but with some slight differences that make it more prototypical. Code 55 track is characterized by having finer brown ties and smaller rail than traditional Code 80 track. Flex track is fully