“Mountain biking is a sport which consists of riding bicycles off-road, often over rough terrain, using specially adapted mountain bikes. Mountain bikes share similarities with other bikes, but incorporate features designed to enhance durability and performance in rough terrain.
Mountain biking can generally be broken down into multiple categories: cross country (XC), trail riding, all mountain, downhill, freeride, dirt jumping and trials. The vast majority of mountain biking falls into the recreational XC, and Trail Riding categories.” (wiki)
In Oslo there are several trails in the area around Frognerseteren. Take the subway Line#1 to the end of the line: Frognerseteren.
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