Once the chain is positioned, begin threading in the rivet tool ( see image) until it forces the chain rivet almost all the way out. To use the chain tool, position the chain into the lower tines ( see image below). Pedros multi tool on the left and Park Tools CT5 on the right. Generally speaking, most bicycle multi-tools will have chain tools, but you can also buy them individually. A chain tool is a device that pushes the rivets into and out of a chain. To repair, replace or adjust the length of you chain you need to purchase a chain tool. Usually, you need to remove a complete link (one set of outer plates, inner plates, rollers and rivets like in the picture above). How much of the broken chain you remove depends on how you are fixing it. To start, you need find and remove the broken link. Your chain is made of only four pieces the outer plate (A), inner plate (B), roller (C), and rivet (D) and every link contains two of each. The reason being, wear will typically only break one chain link, while impact can damage many. Impact damage to chains can be more difficult to repair than if the chain breaks due to wear.
While not as common, chains can break if they are involved in a rock strike or other impact. ImpactĬhains, like anything else on your bike, can be damaged if it gets hit hard enough. Therefore, it’s a good idea to have your chain checked by your local bike shop at least once a year. Combine all those factors, mix in one bad shift and you have a recipe for a broken chain. Additionally, as the chain wears the chainrings and cassette ( gears in the rear) will wear out as well. Because the chain is stretched, the metal fatigues is more susceptible to failure. Correspondingly, a ridden chain will be longer from link to link than a new chain. For example, if a chain has been ridden for 2500 miles, it will actually stretch out. Why is a broken chain common? WearĬhains break for a host of reasons, but most common is wear. Read on to learn the causes of and remedies to a broken chain. While it could be the end of an otherwise great ride, with a little preparation you can easily fix the chain and get your bike back on the road. The second most common trail side mechanical problem to a flat tire is a broken chain.
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