# How To Measure Bike Chain Width?

It is measured by measuring the distance between 3 links, then dividing it by two.

1. Chain pitch is shown with green markers, though it is determined by measuring the distance between 3 adjacent pins (blue mark) and dividing it by two.
2. Inner chain width, marked with blue arrows and lines.
3. From left to right:

What are the dimensions of a bike chain?

• 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.

## How wide is a bike chain?

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.

## How do I know what chain to get for my bike?

When selecting a chain, the first consideration is the number of rear sprockets. The rear cog sets have been made with 5, 6, 7, 8, 9, 10, 11, or 12 sprockets. As the number of cogs on the rear hub increases, the spacing between cogs tends to be reduced.

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## What is the most common bike chain size?

Bicycle chain comes in four basic widths:

• 3/16″ (.
• 1/8″ (0.125″, 3.18 mm) chain is used on most single-speed bicycles, and bicycles with internal gearing.
• 3/32″ (0.094″, 2.30 mm) chain is used on derailer equipped bicycles that have more than 3 cogs at the rear.
• Even somewhat narrower chain, typically.

## How do you measure the width of a necklace chain?

Length is measured from top to bottom, including the clasp. Width is always measured at the widest point.

## What is a narrow bike chain?

Narrow-wide chainrings have alternating narrow and wide teeth that fit into the inner and outer links respectively. This makes the chain more secure on the chainring and less likely to fall off. A narrow-wide ring is only necessary if you have a single chainring at the front and a rear derailleur.