How can I effectively transition from running miles to biking miles in my training routine?

To effectively transition from running to biking in your training routine, gradually reduce your running mileage while increasing your biking mileage. Start by incorporating biking into your routine a few times a week and gradually increase the frequency and duration of your biking sessions. Focus on building your biking endurance and strength while allowing your body to adjust to the new form of exercise. Listen to your body, stay consistent with your training, and consider seeking guidance from a coach or trainer to help you make a smooth transition.