Running mainly exercises gluteus maximus, quadriceps femoris, gastrocnemius and soleus. Cycling mainly involves gluteus maximus, quadriceps femoris in front of thigh and biceps femoris in back of thigh.

Because running is a direct leg stress, and riding has a chain component, the exercise effect of running at the same distance is better.

If you run and ride a bike for a long time, the most important thing is to strengthen your cardiopulmonary function!