A worn bike chain causes poor shifting, more wear, and a less enjoyable cycling experience. Fortunately, you can often easily replace a bike chain yourself. In this guide, we'll explain how to do it step-by-step.
When should you replace a bike chain?
Do you recognize any of these problems?
- The chain skips
- Your bike shifts poorly
- The chain creaks or squeaks
- The chain is rusty
- The chain is loose
Then there's a good chance your bike chain is worn out.
Supplies
- New bicycle chain
- Rear sprocket or cassette
- Chain tool
- Gloves
- Degreaser
- Chain oil or all-weather chain oil
Step 1 — Secure the bike stably
Preferably use a bike stand or place the bike upside down.
Step 2 — Remove the old chain
Use a chain tool to loosen the old chain.
Step 3 — Also check the rear sprocket immediately
When replacing a bicycle chain, we almost always recommend also checking the rear sprocket or cassette and often replacing it directly. These parts wear together.
If you only place a new chain on a worn sprocket, the chain may skip more easily or wear out faster again.
Then place the new chain next to the old one to check if the length is correct.
Step 4 — Install the new chain
Guide the chain correctly through the derailleur and close it with a connecting link.
Step 5 — Lubricate the chain thoroughly
Always use a good chain oil after assembly, for example, an all-weather chain oil. This will keep the chain running smoother and prevent rapid wear due to rain, dirt, and moisture.
Regular lubrication significantly extends the lifespan of both the chain and the sprockets.
Common mistakes
- Using the wrong chain length
- Not applying lubrication
- Threading the derailleur incorrectly
Conclusion
Replacing a bike chain yourself saves money and extends the lifespan of your bike. With the right tools, this repair is perfectly doable yourself.
