Gear case

A gear case, also known as a chain case or chainguard, is an enclosure for the bicycle chain and sprocket assemblages commonly employed by utility bicycles. It serves to protect the cyclist from being soiled or trapped in the chain rings and tends to fully enclose the drive train. It may also contain an oil bath to keep the chain lubricated. Modern examples are usually moulded in plastic. Similar devices may be found in connection with chains used on larger vehicles and machinery.


  • Fully enclosed chain on a European city bike
  • Partially enclosed chain on a European city bike
  • Huffy Flaming Stack chain guard
  • BMX bike with a chain guard bolted to the frame
  • Crankset with an integrated chainguard bolted to the outside of the largest chainring
gollark: I was asking hydraz what he thought the page should look like.
gollark: <@107118134875422720>
gollark: Well, *sorry*. What do you *want* on it?
gollark: I've written```Coroutines are Lua's way of handling concurrency - running multiple things "at once". They act somewhat similarly to threads on computers, except coroutines must explicitly transfer control back to their parent - only one is actually run at any given time. This is what [[coroutine.yield]] does. Many things internally use [[coroutine.yield]], such as [[os.pullEvent]], [[sleep]] and anything else which waits for events.You can create a coroutine with [[coroutine.create]] - pass it a function and it will return a coroutine. This coroutine will initially not be running (use [[coroutine.status]] to check its status - it should show "suspended")See also [http://lua-users.org/wiki/CoroutinesTutorial the Lua users' wiki].```so far, but I'm really not too great at documentation...
gollark: We should put it up *somewhere*.

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