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

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

Before removing the old chain, verify that it is the correct length. Shift the bike into the largest chainring and rear cog. The chain should be long enough to make this shift with two slight bends at each pulley of the rear derailleur. Next, shift to the smallest chainring and sprocket.

## How do I know if my 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.

How long should my chain be?

After a measurement is obtained, its a good idea to opt for a necklace size that is at least the second size up from your neck size. For example, if you have an 18 inch neck, you should probably choose a chain length of 20 inches or more. An 18 inch chain would feel too tight.

Is my chain too long?

### Is my MTB chain too long?

Here’s How: 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.

### How many links should my MTB chain have?

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.

How do you calculate chain length?

The following information is needed to calculate chain length: 1 Chain Stay Length This is the distance between the centres of the two gear cogs. 2 Biggest Front + Biggest Rear Cog For derailleur bikes, use the front and rear cogs that have the most teeth. 3 Chain Pitch The chain pitch is the distance between two adjacent pin centres.

What is the correct length of a bicycle chain?

The correct length of a chain is irrelevant at purchase since they all come at a set length. (Usually 114 1/2″ links, sometimes 120 1/2″ links). In special cases, like tandems and recumbents , you may need to join 2 chains to have enough length.

## How do you calculate the length of a bicycle chain?

L = Length – your chain length in inches (rounded to the nearest inch). C = Chain stay – the distance between the middle of the crank to the rear axle. Measure to the closest ⅛ and convert this to decimal form. F = Front chainring – The number of teeth on the largest (front) chainring.

## What size bike chain do I Need?

Bicycle chain comes in four basic widths: 3/16″ (.1875″, 4.76 mm), used until the middle of the 20th century on many bicycles; this was inch-pitch chain. 1/8″ (0.125″, 3.18 mm) chain is used on most single-speed bicycles, and bicycles with internal gearing.