The average biking speed can vary depending on the cyclist's fitness level, terrain, and bike type. On flat and well-maintained roads, an average cyclist can travel at a speed of around 12-16 km/h. However, experienced cyclists can maintain higher speeds, ranging from 20-25 km/h, especially on downhill stretches. On the other hand, uphill sections and challenging terrains may slow down the average biking speed to approximately 8-12 km/h.