Test Conditions:
1. The speed is 25km/h. The tire collides with the obstacle 750,000 times;
2. Number of jumping blocks: 4. Height * width: 10mm*50mm;
3. Tire pressure: 90% of the maximum tire pressure of the tire;
4. After the running test completed, tire removal and air pumping tests are required.
Judgment Criteria:
1. There is no abnormality in the rim structure.
2. There is no abnormality in the tire mounting place and the outer circle of the rim;
