How to Repair Bicycle Chain

In this guide I will show you how to make this process as simple and quick as possible, or how to fix the chain on your bike. The chain of a bicycle is one of the components most subject to wear and tear of the whole half and probably the one that has to be changed more frequently.

In this guide we will see how to replace it if it breaks. Breaking the chain of a bicycle is a very common problem for those who use this means of transport, both for sport and for normal everyday use. The repair would seem a complicated task, but in reality by following some simple guidelines and using due equipment, everything becomes very easy. In this guide, we will explain in detail the procedures to repair the bicycle chain.

The causes that may lead to breakage of a chain are of two types: the first is because of the snag in the chain, in practice the PIN is detached from the mesh plate, staying connected to one side as a result is unable to bear the traction force and the chain is broken. The second cause is due to a rupture caused by the mechanism stuck in some part of the Crown and to twist effect, the chain undergoes a fracture of one or more meshes.

The main tool that you must have for such a repair, you will unravel-chain, you also have to have an offset (usually there are repair kits that contain everything you need). The offset is nothing more than a mesh that you maneuver without the need for any special tools. The first thing to do is remove links routes so that the two ends of the chain end with tight knit. Using the chain, we must unravel completely remove the large pin that must be replaced with the offset, then tighten the mesh-chain punch until the pin comes out completely, then unscrew, returning back the punch.

At this point you should place the two halves of the offset at both ends of the chain, then superimpose the two plates so that the two pins coincide with the slot and with the fingers crushing two plates, tighten the chain to allow two pins fit into the slot on the housing and finally we ensure that the mesh is completely closed by bicycle lamps from If you don’t have an offset you can recycle your pin, identifying the cutoff point and widening a tight knit that will fit a wide mesh through the use of recycled pin, which will be inserted into the tight knit centering it correctly. In this case the chain will shorten slightly and also the latter system is only a temporary repair because the recycled pin will not have the same lifetime of a pin applied again, for this reason, it is inevitable in the short term have to reopen the chain and add missing links. You can also use the chain tool on the other side of the PIN, pushing slowly the strut in the opposite direction with which you made the repair.
I hope this guide has been as clear as possible for you to understand with do this as simple and quick as possible.

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