What is a bike chain master link?

A master link or quick-release link is a roller chain accessory that allows convenient connection and disconnection of a chain without the need for a chain tool. It acts as a set of the chain’s outer plates, so joining two sets of the chain’s inner plate ends.

Replacement Pin or Master Link: New chains will come with either a new pin, or a specialized link called a master link, to connect the two ends of the chain together.

You need a chain tool to install a new chain no matter if you use a master (quick) link or not. That means both for everyone!

How to Remove Chain Links Without a Chain Breaker Tool

  1. Locate the section of the chain that you want to separate. …
  2. Place the head of the flathead screwdriver between the middle of the chain and the top plate on the chain, just below where the rivets were in Step 1. …
  3. Repeat steps 1-2 for the exact opposite side of the chain that you removed in the previous steps.

A master link is just as strong as any other link on the chain. There’s no reason you can’t use a couple of them.

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How do I know my bike chain size?

Begin by counting the number of teeth on the largest front sprocket and largest rear. These numbers are often printed right on the sprockets and cogs. Next, measure the distance between the middle of the crank bolt to the rear axle. This is also the chain stay length.

How often should I change my bike chain?

To avoid this accelerated wear of your cassette and chainrings, a general rule of thumb is to replace your bike’s chain every 2,000 miles. Mind you, this is just a starting point. No two chains will wear at exactly the same rate because no two riders treat their chains the same.

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