The chain is the hardest-working part of your bike. It transfers every pedal stroke to the rear wheel, and dirt makes it wear faster. A few minutes of cleaning and lubrication every so often keep it quiet and make gears shift smoothly, and a good chain can protect more expensive parts such as the cassette and chainrings.
When should you clean your chain?
- When it looks black and gritty
- When it squeaks or feels rough as you pedal
- After riding in rain, mud or dust
- As a general habit, every few hundred kilometres or about once a week for daily riders
What you need
- Chain degreaser or a mild dish soap solution
- A soft brush or an old toothbrush
- Clean rags
- Chain lubricant suited to your conditions
- A bike stand or something to prop the bike so the rear wheel can spin
Step-by-step
- Lift the rear wheel off the ground so you can turn the pedals.
- Apply degreaser to the chain while you slowly pedal backwards, or use a chain cleaning tool.
- Scrub the chain, cassette and chainrings with a brush to loosen the grime.
- Rinse with a little water, avoiding the bearings, then dry the chain thoroughly with a rag.
- Apply one small drop of lube to each link while pedalling backwards slowly.
- Let it soak in for a few minutes, then wipe off any excess. The lube needs to be inside the rollers, not on the outside where it attracts dirt.
Keep degreaser and lube away from brake pads and discs. Contaminated brakes can lose stopping power and may need replacing.
Choosing the right lube
| Lube type | Best for | Notes |
|---|---|---|
| Dry lube | Dry, dusty conditions | Lighter and cleaner but wears off sooner in rain |
| Wet lube | Wet and muddy conditions | Lasts longer but attracts dirt; needs more cleaning |
| Wax-based lube | Clean, low-friction riding | Needs a clean chain to start with and regular reapplication |
Check for chain wear
Chains stretch with use. A chain checker tool measures this; many riders replace the chain at around 0.5 to 0.75 percent wear, depending on the number of gears and the maker’s advice. A worn chain damages the cassette and chainrings, and replacing a chain early is much cheaper than replacing those parts.
Signs your chain needs attention
- Skipping or slipping under load
- Rust or dark, dry-looking links
- Loud grinding or squeaking
- Gears that are slow or noisy to change
Final thoughts
Cleaning your chain is a satisfying five-minute job. Make it part of your routine, alongside the other checks in our maintenance checklist.
This guide is for general information only. Bikes, prices and local rules differ, so check your bike manual and local regulations, and see a qualified mechanic for safety-critical repairs. If you have a health concern, speak to your doctor before starting a new exercise routine.
