Singletrails are special trails for mountainbiking and are displayed on the map as black lines with a green label. The label refers to the difficulty of the singletrail, ranging from S0 for easy trails to S5 for difficult ones. This is in accordance with the official Singletrail Scale. If your route covers the labels on the map, you can hide the blue line by pressing M on your keyboard, if you are working on our website.