The chain on your bike is a very important component, transferring the energy put into the pedals, to the back wheel and gets you moving forward. We look at the process of fitting a new chain to your bike and when/why you would need to.

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Why does your chain need replacing then? With every bit of pressure being put onto the pedals, the lifespan of a chain decreases. Now there's a common misconception that a chain stretches when in actual fact, it doesn’t. As you would need to produce an incredible amount of power to stretch the metal. Instead, the chain actually wears out. How though? Well, there are these parts of the chain, the rivets and the rollers and they actually slowly wear away as you pedal, if there is a lot of dirt in there, it wears out even quicker. Hence the love for a clean chain!

There are a few methods here on how to see if your chain is in need of replacing. The first option is arguably the easiest and simplest method, it’s not the most accurate but it’s a start. You need to put the chain onto the big chainring and the sprocket at the rear with the smallest number of teeth. Then, at the 3 o’clock position of the chainring, try and lift the chain from the chainring. If you can see lots of daylight where the chain normally sits then there is a good chance that the chain needs replacing, particularly if you can see that daylight over a number of the teeth of the chainring.

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