N53090 Easy TRACK Add On Helix Elements for N53060N scale is all about creating a believable world in a limited space. Thats exactly what the NOCH easy TRACK Helix, Basic Helix is designed for. With track radii of 194 230 mm and the option of single track or double track running, it gives you a practical foundation for connecting different levels and adding real depth to your route planning without losing the light, elegant feel that makes N scale so special. A helix adds motion through space: trains