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Replacement chainrings must be chosen with a bolt-hole count and spacing that matches the spider. Chainrings designed for use with multi-chainring crank arms may have ramps or pins to aid in shifting. The middle chainring, in the case of a triple crankset, usually has the most shaping to aid in shifting up and down.
Bicycle chains Roller chain and sprocket. A bicycle chain is a roller chain that transfers power from the pedals to the drive-wheel of a bicycle, thus propelling it.Most bicycle chains are made from plain carbon or alloy steel, but some are nickel-plated to prevent rust, or simply for aesthetics.
A larger sum requires a longer cage length. Typical cross country mountain bikes with three front chainrings will use a long cage rear derailleur. [citation needed] A road bike with only two front chainrings and close ratio sprockets can operate with either a short or long cage derailleur, but will work better with a short cage.
The tendency of a chain to stick to chainrings and be sucked up into the bike instead of coming off the chainring. Primarily caused by worn chainrings and rust on small chainrings, under high loads, and in dirty conditions. [7] Chainring(s) The front part of the drivetrain where the chain engages. May be composed of one to three gears. [7 ...
Bicycle rear wheel showing front and rear derailleurs, and rear cogset. External gearing is so called because all the sprockets involved are readily visible. There may be up to 4 chainrings [10] attached to the crankset and pedals, and typically between 5 and 12 sprockets making up the cogset attached to the rear wheel.
Chainring: (one of the) front gear(s), attached to a crank; Chainset: see Crankset; Chainstay: a pair of tubes on a bicycle frame that runs from the bottom bracket to the rear fork ends; Chain tensioner: a device to maintain proper chain tension; Chaintug: a device to aid in setting the proper chain tension
Bicycle lock (or bicycle chain), lockable chain; Chain boom, large chains used to exclude warships from harbors and rivers; Chain link fencing, fencing that utilizes vertical wires that are bent in a zigzag fashion and linked to each other; Chain mail, a type of armor consisting of small metal rings linked together in a pattern to form a mesh.
Bicycles with a single front chainring and rear sprocket (for example bicycles with hub gears or coaster brake hubs) may have a master link on the chain which holds the pin in place with an easily removable c-clip. Some master links are bevelled on top, and can interfere with the smooth operation of a derailleur system. Some derailleur ...