What safety precautions should be taken when engaging in downhill bike riding?

When engaging in downhill bike riding, it is important to wear a helmet, knee and elbow pads, and appropriate protective gear. Check your bike for any mechanical issues before riding, and make sure to follow designated trails and stay within your skill level. Always be aware of your surroundings, use proper braking techniques, and maintain a safe speed. Additionally, it is recommended to ride with a buddy or let someone know your planned route and estimated return time.