# How long should your bike chain be?

Contents

In order to make absolutely sure the chain is long enough, it should be put around the biggest chainring in the front, the biggest sprocket at the rear and then add one more inch, i.e. one link because of the derailleur (one link consists of a pair of outer and inner plates, as shown in the picture below – it is often …

## How long of a chain do I need for my bike?

Add the multiplied chainstay length, the divided number of teeth for the chainring and rear sprocket, and add 1 (or 2.5 cm). The result is the ideal chain length for your bike. For example, you’d add 32.5, 13, 7 and 1 to get 53.5. The length of the chain should be 53.5 inches or 135.89 cm.

## How do you calculate chain length?

Procedure

1. Calculate C, where C = CD/p.
2. Calculate A, where A = Z1 + Z2.
3. Calculate S, where S = Z2 – Z1.
4. Refer to the adjacent table to find the T value for the calculated S value.
5. Chain Length in Pitches, CL = 2C + (A/2) + (T/C)
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## How do I know if my bike chain is too long?

Do a simple check on your bike by shifting the chain to the big chainring and the biggest cassette cog; then, push on the end of the derailleur cage (pushing forward) to see how much it will move forward. If it moves just a little, then you’re good. If it moves a lot, then you’ve got too much chain.

## Does chain length affect speed?

Registered. Sprocket and gear size affect performance (speed/torque)… The length of the chain will only effect your wheel base…

## How many links should my chain have?

Bicycle drive chain length

A new bicycle chain usually comes with 116 links. This is long enough for the biggest chainrings and for most distances of rear wheel from front chainrings. So for optimal length a new chain is usually shortened from the 116 links that come in the box.

## What is the chain length?

The chain is a unit of length equal to 66 feet (22 yards). It is subdivided into 100 links or 4 rods. There are 10 chains in a furlong, and 80 chains in one statute mile. In metric terms, it is 20.1168 m long.

## Are bike chains universal?

All modern bicycle chains are made to the “one-half inch pitch” standard, meaning from rivet to rivet is nominally 0.5 inches. The sprocket teeth are cut for this same one-half inch standard to accept bicycle chains. However, this does not mean all makes and models of chains are interchangeable.

## What will happen if bike chain is too long?

If the bike chain is too long it will cause problems when changing gears as you shift gears and the derailleur can’t pick up the extra chain length. As a result, the chain may keep slipping off. … Your front and rear derailleur are not properly aligned. The chainring, derailleur, or the chainring are damaged.

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## What happens if your chain is too short?

If the chain is too short, this shift is difficult to make and the derailleur cage is stretched out and almost parallel to the chainstay. If the chain is really short, then you might not even be able to shift into the largest cog. … Before you remove the chain, make sure it’s on the small chainring and smallest cog.

## Why does my chain skip when I pedal hard?

Most of the time, a skipping chain is caused by cable stretch. In the first half dozen rides on a new bike your shift cables stretch the most. They can also stretch over time as you ride. … Shift down into the smallest ring in the rear cassette again, and press your shifter again to see if the bike shifts properly.

## Can you lengthen a bike chain?

Yes, you can add links to a bike chain , but you need to be careful that you have the right tools ( Chain Tool/Master Link Pliers) and correct methods. … All bikes should be able to make this shift, and the derailleur should not appear stretched too tight.

## Do I need a longer chain for a bigger cassette?

You need a bit longer chain for a larger cassette. All things remaining the same, if your chain was the correct length before, adding the 34t gear increases the diameter of the low gear. That increases the total gear length, so you would have to have more chain to keep the adjustment correct.

## Can I use an 8 speed chain on a 7 speed cassette?

5, 6, 7 and 8 speed chains

7.1 mm wide 8 speed chain will fit all the other systems (5, 6 and 7 speed ones).

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