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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.
Chain guard is usually mounted on the outboard side of the chainring or, in case of multi-sprocket chainring, on the outboard side of the largest chainring. Single-sprocket chainrings may have chain guards on both inboard and outboard sides, helping keeping the chain on the chainring; this is common on multi-speed juvenile bicycles.
Trek, the bike supplier, confirmed shortly before the team was officially presented that they would be a co-title sponsor, giving the team a full name of "Leopard Trek." [9] Team rider Wouter Weylandt died as a result of a high-speed, downhill crash during the 2011 Giro d'Italia. The remaining riders of Leopard Trek left the competition at the ...
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Basket: it is an optional attachment on a bike and is used for carrying things; Bearing: a device that facilitates rotation by reducing friction; Bell: an audible device for warning pedestrians and other cyclists; Belt-drive: alternative to chain-drive; Bicycle brake cable: see Cable; Bottle cage: a holder for a water bottle
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.