What are some common causes of bike noise and how can it be minimized or eliminated?

Common causes of bike noise include loose components, misaligned parts, worn-out bearings, and chain issues. To minimize or eliminate bike noise, regularly check and tighten all components, ensure proper alignment of parts, replace worn-out bearings, and keep the chain well-lubricated and properly tensioned. Regular maintenance and tuning can help prevent and reduce bike noise.