Bikes should yield to other trail users. Be courteous.
Big Fire North and Big Fire South are downhill-only flow trails for bikes. Hikers are permitted on these trails, so keep your eyes up and be aware of your surroundings. Sight lines are good, so if you pay attention, you can see hikers far enough in advance to slow down and pass safely.
Big Fire North is shorter than Big Fire South, but it's every bit as fun. Plenty of swoopy bermed corners really let you keep your speed in the twisty stuff. Big Fire North has fewer opportunities for air than Big Fire South.