What size is a 9 speed chain?

6.7mm wide
Chains for 9-Speed Bicycles Chains for 9-Speed Drivetrains are 6.7mm wide and work well regardless of manufacturer; Shimano, SRAM and Campagnolo. Front chainrings are less sensitive to the width of a chain, therefore SRAM 9-speed drivetrains can even use 10-speed chains.

What is the difference between a 9 speed chain and a 10 speed chain?

The main difference between a 9 speed chain and a 10 speed chain is that the 10 speed chain is thinner in width, because of the 10 speed cassette, which in turn means the chain is lighter.

How do I know what chain to buy 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.

Are 9 and 10-speed chains compatible?

So, will a 10-speed chain work on a 9-speed cassette? The answer is yes. Since the chain’s inner width doesn’t differ from the nine-speed, they are compatible. In addition, the 10-speed chain has a thinner outer profile which makes it fit on the cogs without any rubbing or skipping.

Are there different bike chain sizes?

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 size chain is on a bicycle?

The chain in use on modern bicycles has a 1⁄2 inch (12.7 mm) pitch, which is the distance from one pin center to another, ANSI standard #40, where the 4 in “#40” indicates the pitch of the chain in eighths of an inch; and is standard 606 (metric) #8, where the 8 indicates the pitch in sixteenths of an inch.