Chain | How To Buy A Bike

Pay attention to how the chain closes. Most modern chains use a "Master Link" or "PowerLock" (a tool-free connecting link), while some Shimano models still utilize a specific connecting pin that must be snapped off with pliers. 4. The Replacement Threshold

Always match the chain to the number of rear cogs. While there is some minor room for interchangeability in older 6/7/8-speed systems, modern drivetrains require an exact match. 2. Brand Ecosystems and Materials how to buy a bike chain

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% . Pay attention to how the chain closes

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. The Replacement Threshold Always match the chain to