Single track (mountain biking)
(重定向自Singletrack)
Single track or singletrack is a narrow mountain biking trail that is approximately the width of the bike. It contrasts with double track or fire road which is wide enough for four-wheeled off-road vehicles. In addition it is frequently smooth and flowing, but it may also exhibit technical rocky sections and may be criss-crossed with tree roots. Some trails are winding and flowing, while others are bumpy and challenging. Many trails offer features such as roots, logs and rocks. Single track paths can be ridden using a mountain bike, BMX bike or race bike.
Single track riding can be quite challenging from a technical standpoint. Singletracks cover vast areas of both state and national park lands.