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  2. Bicycle drivetrain systems - Wikipedia

    en.wikipedia.org/wiki/Bicycle_drivetrain_systems

    A chain drive and rear derailleur gear change, the most popular system in use today A shaft-drive with crankset and rear gear hub. Bicycle drivetrain systems are used to transmit power on bicycles, tricycles, quadracycles, unicycles, or other human-powered vehicles from the riders to the drive wheels.

  3. List of bicycle brands and manufacturing companies - Wikipedia

    en.wikipedia.org/wiki/List_of_bicycle_brands_and...

    This page lists notable bicycle brands and manufacturing companies past and present. For bicycle parts, see List of bicycle part manufacturing companies.. Many bicycle brands do not manufacture their own product, but rather import and re-brand bikes manufactured by others (e.g., Nishiki), sometimes designing the bike, specifying the equipment, and providing quality control.

  4. Electronic gear-shifting system - Wikipedia

    en.wikipedia.org/wiki/Electronic_gear-shifting...

    The front derailleur, however, switches gears almost 30% faster than Dura-Ace’s mechanical counterpart. [1] On traditional bikes, the front derailleur is problematic because the chain can be under tension and has to make a large vertical jump between chainrings. The electronic system's controlled motion overcomes these problems.

  5. Gearbox bicycle - Wikipedia

    en.wikipedia.org/wiki/Gearbox_bicycle

    A gearbox bicycle is a bicycle that uses a gearbox [1] [2] to convert torque and rotational speed from the power source, usually the rider's legs, to what is desired at the drive wheel. The gearbox is usually incorporated into the frame near the crank , and it may be used in addition to or instead of derailleur gears or a hub gear . [ 3 ]

  6. Bicycle gearing - Wikipedia

    en.wikipedia.org/wiki/Bicycle_gearing

    A single-speed bicycle is a type of bicycle with a single gear ratio and a freewheel mechanism. These bicycles are without derailleur gears, hub gearing or other methods for varying the gear ratio of the bicycle. Adult single-speed bicycles typically have a gear ratio of between 55 and 75 gear inches, depending on the rider and the anticipated ...

  7. Trek Bicycle Corporation - Wikipedia

    en.wikipedia.org/wiki/Trek_Bicycle_Corporation

    A steel framed 2002 Trek 800 Sport mountain bike A Trek 7200 hybrid bicycle (2008) An aluminum framed, 2012 Trek 1.1 Road Bike. In 1997, Trek helped sign former world road race champion (1993) Lance Armstrong to the Trek-sponsored United States Postal Service Pro Cycling Team. Armstrong won his first Tour de France in 1999 aboard a Trek 5500 ...