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  2. Electric bicycle - Wikipedia

    en.wikipedia.org/wiki/Electric_bicycle

    The motor was designed within the hub of the crankset axle. [9] (This model was later re-invented and imitated in the late 1990s by Giant Lafree e-bikes.) By 1898, a rear-wheel drive electric bicycle, which used a driving belt along the outside edge of the wheel, was patented by

  3. Velomobile - Wikipedia

    en.wikipedia.org/wiki/Velomobile

    Most electric-assist propulsion motors are of the in-wheel design in the rear wheel, such as geared hub motors (like eZee, Heinzmann, Bafang, BMC, etc.) and direct-drive hub motors (like Crystalyte, BionX, 9Continent, etc.) but mid-drive units (like Sunstar, Cyclone, Ecospeed, etc.) are used as well due to design constraints in velomobile ...

  4. Sprocket - Wikipedia

    en.wikipedia.org/wiki/Sprocket

    Chain track drive sprocket (Leclerc battle tank, 2006) In the case of vehicles with caterpillar tracks the engine-driven toothed-wheel transmitting motion to the tracks is known as the drive sprocket and may be positioned at the front or back of the vehicle, or in some cases both. There may also be a third sprocket, elevated, driving the track.

  5. Roller chain - Wikipedia

    en.wikipedia.org/wiki/Roller_chain

    Roller chain and sprocket The sketch of roller chain, Leonardo da Vinci, Codex Atlanticus. Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles.

  6. Boxer Paul Bamba dies days after winning WBA championship - AOL

    www.aol.com/boxer-paul-bamba-dies-days-170622072...

    Boxer Paul Bamba, who won the WBA Gold Cruiserweight title a week ago, has died at 35. His death was announced by his family and his manager, singer/songwriter Ne-Yo, in a joint statement issued ...

  7. Chain drive - Wikipedia

    en.wikipedia.org/wiki/Chain_drive

    Drive shafts tend to be tougher and more reliable than chain drive, but the bevel gears have far more friction than a chain. For this reason virtually all high-performance motorcycles use chain drive, with shaft-driven arrangements generally used for non-sporting machines. Toothed-belt drives are used for some (non-sporting) models.

  8. These undersea tunnels connect remote islands halfway between ...

    www.aol.com/news/undersea-tunnels-connect-remote...

    In the Faroe Islands, wild, unpredictable weather — fierce winds and rain, and thick fog that settles like a curtain — can sometimes make travel by car or ferry problematic.

  9. California DMV apologizes for license plate that some say ...

    www.aol.com/news/california-dmv-apologizes...

    The California Department of Motor Vehicles has apologized for an “unacceptable and disturbing” personalized truck license plate that the agency said displayed hate speech related to the ...

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