chain number?

[kendelrk]

what is the exact number of bicycle chain?

 

[Doc Sprocket]

You'd be amazed how effective Google can be...

From Wiki-

"Sizes



Exploded view of a few bicycle chain links
The chain in use on modern bicycles has a 1/2" pitch, which is ANSI standard #40, where the 4 indicates the pitch of the chain in eighths of an inch, and metric #8, where the 8 indicates the pitch in sixteenths of an inch.
[edit]Width
Chain comes in either 3/32", 1/8", 5/32" or 3/16" roller widths: 5/32" is used on cargo bikes and trikes, 1/8" with the common low cost coaster (back pedal brake) bike, hub and fixed gearing and on track bicycles, and 3/32" with the derailleur gears most commonly fitted on racing, touring and mountain bikes.
The Wikibook, "Bicycle Maintenance and Repair", explains that the difference between derailleur chains commonly labelled 8-speed, 9-speed, and 10-speed is in its external width (all are 3/32" chains, that is, in their minimum internal clearances)."

 

[kendelrk]

thanks toystory, was just being kind of lazy, i have to get a new chain