自從去年台灣政府開放81條林道後，令到騎乘林道的風潮慢慢提升，人們喜歡探索台灣大自然的美也慢慢增加。也因為疫情關係，自行車運動提供了良好的社交距離，以因此令喜歡探索林道的自行車愛好者也日漸增多起來。
近年Gravel Bike 礫石公路車風潮從國外流行到台灣，Gravel Bike 礫石公路車跟公路車一樣提供速度感及良好操控性，但有別於傳統公路車，配搭粗寬有顆粒的外胎設定，可以騎乘於任何地形，探索公路以外不同的路線。除了在美國已經有一段歷史的 “Dirty Kanza” Gravel Bike 礫石公路車賽外，也有很多人選擇 Gravel Bike 礫石公路車因為可以搭配非常多的載物收納功能，作為單車旅行之用 (Bike Packing ) 。
為了推廣台灣山林之美，現在台灣也有首場Gravel Bike 礫石公路車挑戰賽 – Dirty Formosa Challenge。路
線從埔里麒麟國小出發，進入漂亮的河床景色武界騎乘，然後進入惡名昭彰，需要有較高的操控技巧來征服的力行產業道路，再騎乘至遍地茶園的福壽山農場為終點。總距離約103公里，總爬升約為4,000公呎，考驗你的操控技術、體能及耐力。
Since the Taiwan government opened 81 trails last year, the trend of riding trails has gradually increased, and people like to explore the beauty of Taiwan’s nature has also gradually increased. In recent years, the gravel road bike has become popular from abroad to Taiwan. The gravel bike offers the same sense of speed and good handling as road bikes, but it is different from traditional road bikes. Ride on any terrain and explore different routes beyond the highway. In addition to the history of the "Dirty Kanza" Gravel Bike race in the United States, also many people choose Gravel Bike because it can be equipped with a lot of storage functions for Bike Packing. In order to promote the beauty of Taiwan’s mountains and forests, Taiwan now also has its first gravel road bike challenge – Dirty Formosa Challenge. The route starts from Qilin Elementary School in Puli, enters the beautiful riverbed scenery and rides in Wujie, then enters the notorious industrial road that requires high handling skills to conquer, and then rides to Fushoushan Farm, which is full of tea gardens. The total distance is about 103 kilometers and the total elevation gain is about 4,000 meters. It tests your handling skills, physical stamina and endurance.
