1. Sun protection: the sun is strong in summer. When riding a bicycle, you should pay attention to applying sunscreen to protect your skin from the sun, and wear a hat and sunglasses to protect your head and eyes.

2. Drink water properly: it is easy to dehydrate at high temperature, and you must bring enough water during riding to keep moisture to prevent heatstroke or physical exhaustion.

3. Choose the right time and route: avoid cycling in the hot sun and high temperature, and try to choose early morning or evening. In addition, choose the shady route or shady road to reduce the time of exposure to the sun.

4. Wear appropriate clothes: choose clothes that are breathable and sweat-absorbent, and avoid wearing clothes that are too tight or airtight. Wearing helmets, gloves and other riding equipment is also a necessary safety measure.

5. Pay attention to body signals: pay attention to the body's reaction when riding. If you have symptoms of heatstroke such as dizziness, fatigue and nausea, you should immediately stop and rest, replenish water and seek help.

6. Check the bicycle in advance: check the brakes, tires, bells, etc. The bicycle works normally before riding to ensure the safety performance of the bicycle.

Remember, cycling safety comes first, especially in high temperature environment, and we should pay more attention to protecting our health.