# FAQ: What Size Is Bicycle Chain?

## How do I know my bike chain size?

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.

## What is the standard size of a bicycle chain?

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.

## How do I know what speed my bike is?

Multiply the front gear number by the rear gear number to get the number of speeds. For example, if you have two front gears and five back gears, you have a 10-speed bike. If you have one front gear and three back gears, you have a 3-speed bike.

## Are all bicycle chains the same size?

Are all bicycle chains the same size? No, all bicycle chains are not the same size. Size varies on the bike’s numbers of sprockets, speeds, the distance between the front chainring and rear cogs, and the number of teeth on them.

You might be interested:  Question: How To Fix A Rusty Bicycle Chain?

## What is the most common bike chain size?

Chains come in 3⁄32 in (2.4 mm), 1⁄8 in (3.2 mm), 5⁄32 in (4.0 mm), or 3⁄16 in (4.8 mm) roller widths, the internal width between the inner plates. 1⁄8 in (3.2 mm) chains are typically used on bikes with a single rear sprocket: those with coaster brakes, hub gears, fixed gears such as track bicycles, or BMX bikes.

## What is a 35 roller chain?

#35 roller chain is the 2nd size in the ANSI B29. 1 roller chain sizes lineup. It utilizes a small form-factor for tight applications and is manufactured out of high-strength mild carbon steel for shock load and fatigue resistance.

## Will a #40 chain fit a 35 sprocket?

No. A #40 chain is 1/2″ between the pins and 5/16″ inside width. A #35 is 3/8″ between the pins and 3/16″ inside width. There is no way it will work.

## How strong is 35 chain?

The Premier Series 35 simplex chain offers an industry-leading high tensile strength of 2,430 LBS and a 560 LBS maximum working load.

## How often should I change my bike chain?

The 2,000-Mile Rule. To avoid this accelerated wear of your cassette and chainrings, a general rule of thumb is to replace your bike’s chain every 2,000 miles. Mind you, this is just a starting point. No two chains will wear at exactly the same rate because no two riders treat their chains the same. 4

## How much does it cost to fit a bike chain?

Most shops charge \$15 to \$20 to install a chain or you can purchase a chain tool for \$10 to \$50 and learn to do it yourself.