How long are bike tires good for and when should they be replaced?

Bike tires are typically good for around 2,000 to 3,000 miles, but this can vary depending on factors like road conditions and tire quality. They should be replaced when the tread is worn down, there are visible cuts or cracks, or if they are consistently losing air. It's important to regularly check your tires for signs of wear and replace them as needed to ensure safe riding.