How do you properly maintain and lubricate a bike drive chain to ensure optimal performance and longevity?

To properly maintain and lubricate a bike drive chain for optimal performance and longevity, follow these steps:

1. Clean the chain regularly with a degreaser and a brush to remove dirt and grime.
2. Dry the chain thoroughly before applying lubricant.
3. Apply a high-quality bicycle chain lubricant to the chain, focusing on the rollers and links.
4. Wipe off any excess lubricant to prevent attracting dirt.
5. Reapply lubricant after riding in wet conditions or every 100-200 miles. By following these steps, you can ensure your bike chain stays in good condition and performs well for a longer period of time.