Add to Cart IronRidge IronRidge XR-100-204B Solar Rail XR100 Black 17 Feet $67.99 IronRidge XR-100-204B Solar Rail XR100 Black 17 Feet XR100 is a new "mid" rail. XR100 is the ultimate residential mounting rail. It supports a range of wind and snow conditions, while also maximizing spans. XR Rails are the backbone of the solar array... Compare Add to Cart Add to Wishlist