Mountain biking without lights at night is extremely risky, and it is strongly not recommended to try it. Mountain cycling is inherently full of uncertainty. Visibility at night is extremely low. Lack of lighting can greatly increase the risk of falling, collision or disorientation, which may lead to serious injuries and even life-threatening. If you must ride in low light conditions, please be sure to follow the following **Safety alternatives**： --- ###**Alternative: Key measures for safe night riding** 1. **Use professional cycling lights** -**Headlights**: Choose high-lumen (at least 1000 lumens or more) headlights with far and near light adjustment function to ensure that the path ups and downs and obstacles are illuminated. -**Taillight**: Red warning light (flashing mode) increases the probability of being spotted by other riders or vehicles. -Spare battery or power bank: prevent battery from running out. 2. **Environmental assistance program** -**Moonlight***: Only for full moon and cloudless weather, and you need to be familiar with the route (simple, no technical difficulties). Even so, shadows and terrain changes may still hide dangers. -**Reflective/fluorescent marking**: Reflective strips are affixed to the body, helmet, and clothing to passively improve visibility (but cannot replace active lighting). 3. **Route and equipment selection** -**Familiarity is preferred**: Choose a simple route that has been ridden many times during the day, avoiding complex terrain such as cliffs and gravel. -**Low-speed control**: Significantly reduce the speed to deal with sudden obstacles. -**Necessary protective gear**: helmets, knee pads, gloves, etc. to reduce car-fall injuries. 4. **Emergency in extreme situations** -If the light fails unexpectedly, you should **Stop immediately**, use your mobile phone flash or call for rescue to avoid moving forward in the dark. --- ###**Why do you refuse to ride without light? ** -**Physiological limitations**: The reaction time of the human eye to dynamic obstacles in a dark environment is greatly extended (about 25 meters recognition distance vs. 50 meters+ of headlights). -**Legal liability**: Laws in some regions require that night riding must be equipped with lights, and violations may face penalties. -**Team risk**: If you ride with others, the behavior without lights will endanger the entire team. **Safety is always the first priority of riding. ** If the lights cannot be used for special reasons, please choose to ride during the day or in a venue with sufficient artificial lighting.