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How to size a bike chain

October 9, 2024
How to size a bike chain

How to size a bike chain: Sizing a bike chain can be tricky. There are a lot of factors to consider, and it can be difficult to know where to start. In this comprehensive guide, we will walk you through the process step-by-step. We will cover everything from how to measure your chain to how to choose the right replacement chain.

By following our advice, you will be able to size your bike chain quickly and easily. It’s important to get the right size chain because an incorrectly sized chain can cause problems. It can slip off the gears, or it can be too tight and bind up. Either way, it’s not good for your bike. So let’s get started!

How To Measure Your Bike Chain?

The first step is to measure your bike chain. You will need a tape measure for this. Start by putting the end of the tape measure at the center of the crank spindle. Then, run the tape measure along the length of the chain until you reach the point where it meets the rear cog.

Make a note of the number that the tape measure lands on. This is the length of your bike chain. Now that you know the length of your bike chain, you can start shopping for a replacement chain.

What To Consider When Sizing A Bike Chain?

When you are looking for a replacement chain, there are a few things that you need to take into account.

Width Of Your Chain

The width of your chain is determined by the width of your rear cog. You need to make sure that you get a chain that is the same width as your rear cog. If you have a Shimano cassette, then you will need a Shimano-compatible chain. The same goes for SRAM cassettes.

You can usually find the width of your rear cog printed on the back. It will be either an 11, 12, or 13-speed chain. If you can’t find the width of your rear cog, then you can measure it yourself. Take a ruler and measure the distance between the inner plates of your rear cog.

To get an accurate measurement, it’s best to do this at the widest point.

Number Of Speed

The speed is the second thing that you need to take into account when you are looking for a replacement chain. The speed is determined by the number of cogs on your rear cassette. If you have an 11-speed cassette, then you will need an 11-speed chain.

You can usually find the number of speeds printed on the back of your rear cassette. If you can’t find it, then you can count the number of cogs yourself.

Chain Compatibility

The last thing that you need to take into account is chain compatibility. Not all chains are compatible with all drivetrains. You need to make sure that you get a chain that is compatible with your drivetrain. For example, if you have a Shimano drivetrain, you will need to get a Shimano chain. If you have an SRAM drivetrain, you will need to get an SRAM chain.

The Signs That You Need A New Bike Chain

Now that you know how to size a bike chain let’s talk about when you need to replace your chain. There are a few signs that you need to look for.

Chain Stretches

One of the most obvious signs that you need a new chain is when your chain starts to stretch. This is because the chains are made out of metal, and over time they will start to stretch. You can usually tell when your chain is stretched because it will feel loose.

If you have a chain checker, then you can use this to check the stretch of your chain. If you don’t have a chain checker, then you can measure the length of your chain. If it is more than 0. 25% longer than it was when it was new, then it is time to replace your chain.

Chain Wear

Another sign that you need to replace your chain is chain wear. This is when the teeth on your chainrings and cogs start to wear down. You can usually tell when your chainrings and cogs are starting to wear down because they will feel rough. If you run your finger along the teeth, you should feel some bumps.

Noise

Another sign that you need to replace your chain is noise. If your chain is making a lot of noise, then it is time to replace it. The most common cause of a noisy chain is when the chains are dry. This is why it’s important to lube your chain on a regular basis. It’s also important to clean your chain on a regular basis. If you clean and lube your chain, and it is still making noise, then it is time to replace it.

Skipping

If your chain is skipping, then this is another sign that you need to replace it. Skipping can be caused by a number of things, but the most common cause is worn out cogs or chainrings. If your cogs and chainrings are worn out, then they will no longer be able to grip the chain properly. This will cause the chain to skip.

Another common cause of skipping is a dirty or dry chain. If your chain is dirty or dry, then it will not be able to grip the cogs and chainrings properly. This will also cause the chain to skip.

Slow Shifting

If your shifting is starting to feel slow, then this is another sign that you need to replace your chain. Slow shifting can be caused by a number of things, but the most common cause is a dirty or dry chain. If your chain is dirty or dry, then it will not be able to grab onto the cogs and chainrings properly. This will cause your shift to feel slow.

Final Thoughts

Now that you know how to size a bike chain and when you need to replace it, you should be able to keep your bike in good working order. You’ll be able to enjoy many rides for years to come and avoid costly repairs. Just be sure to consult your bike’s owner’s manual for specific instructions on how to maintain your bicycle properly.

Don’t miss to check our blog post: Best Electric Bikes for Money in 2024.

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1 Comment

  • Reply Investigate anonymous callers November 5, 2024 at 9:26 pm

    You presented the information in a clear and concise manner, well done.

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