How often should I clean and lubricate my bicycle chain?

There's no standard answer to this question; anyone who says "it must be every X days" is talking nonsense. The best answer is: it depends. But don't worry, "it depends" is actually quite easy to figure out.

You can decide based on the following points:

1. Listen to the sound: This is the simplest and most direct method. When you're riding, if you hear your chain making a "squeaking," "grinding," or "dry rustling" sound, instead of a smooth "swishing" sound, it means it's "thirsty" and needs oil. A happy chain is a quiet chain.

2. Consider road conditions:

   • Dry dirt roads: If you often ride in dry, dusty areas, your chain will quickly get covered in sand and dirt. In this case, you might need to clean and lubricate it after just 100-200 kilometers. Otherwise, those grit particles will wear down your chain and chainrings like sandpaper.
   • Wet and muddy roads: This is the most damaging to your chain. If you've ridden in the rain or through muddy areas, it's best to clean, dry, and lubricate it immediately after returning home. Water and mud are the chain's arch-enemies; if not dealt with promptly, you might see rust the next day.
   • Clean asphalt roads: If you're an "urban rider" and the road conditions are very clean, your chain can last a bit longer. You might be able to ride 300-500 kilometers, or wait until it doesn't feel as smooth before performing maintenance.

3. Look at the chain's appearance: Take a look at your chain. If it's black, greasy, and covered in dirt and lint, forming a layer of "grime," then even if it's not making noise, it's time for a thorough cleaning. This grime not only wears down components but also makes a mess of your pant legs.

A lazy person's guide:

• Lubricate if not dirty: If the chain looks relatively clean but is a bit dry and noisy, wipe it clean with a cloth, then apply a drop of chain lube to each link. After that, use a clean cloth to wipe off any excess oil from the surface. Remember, the oil needs to penetrate the links; oil left on the surface will only attract dust.
• Clean then lubricate if dirty: If the chain is already very dirty, you'll need to thoroughly clean it first with a dedicated chain cleaner (or kerosene, but handle with care) and a brush, dry it, and then lubricate it.

So, don't get too hung up on "how often." Instead, develop the habit of "looking and listening before each ride." Your bike will tell you through its sound and appearance when it needs maintenance.