How To Buy A Bike Chain | 2025 |

For 11- or 12-speed systems, you should replace the chain when it reaches 0.5% stretch . For 9-speed systems or lower, you can usually wait until 0.75% .

Timing your purchase is as important as the purchase itself. Waiting until a chain "skips" usually means you have already damaged your cassette and chainrings. how to buy a bike chain

A 12-speed chain is significantly thinner than an 8-speed chain. Using a chain with the wrong width will result in it getting stuck between cogs or failing to shift entirely. For 11- or 12-speed systems, you should replace

A new chain is a minor expense; a new cassette and crankset are not. Investing in a simple chain checker tool can save you hundreds of dollars by alerting you when it’s time to shop. Chain Compatibility | Park Tool Waiting until a chain "skips" usually means you