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  2. Electronic gear-shifting system - Wikipedia

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

    The switches send signals through a wiring harness to a battery pack, placed near the bottom bracket. The rechargeable lithium-ion battery pack supplies power to the derailleur motors, which move the derailleurs via worm gears. Shimano estimates that their 7.4-volt battery pack can last up to 1,000 kilometres (620 mi) per charge. [14]

  3. List of electric bicycle brands and manufacturers - Wikipedia

    en.wikipedia.org/wiki/List_of_electric_bicycle...

    This article lists notable electric bicycle brands and manufacturers including electric unicycles. Many bicycle brands do not manufacture their own product, but rather import and re-brand bikes manufactured by others, sometimes designing the bike, specifying the equipment, and providing quality control.

  4. Aventon Bikes - Wikipedia

    en.wikipedia.org/wiki/Aventon_Bikes

    Aventon, the developer of electric-powered personal bikes, has provided its consumers with smooth and sustainable mobility.The concept of “micromobility” and restrictions on public gatherings and transportation because of the COVID-19 pandemic began several years ago boosted the e-bike phenomenon in the global marketplace, especially in the Americas and Europe.

  5. Electric motorcycles and scooters - Wikipedia

    en.wikipedia.org/wiki/Electric_motorcycles_and...

    In 1975, Corbin built a battery-powered prototype street motorcycle called the City Bike. This motorcycle used a battery manufactured by Yardney Electric. [15] In June 1975, the first Annual Alternative Vehicle Regatta was held at Mt. Washington, New Hampshire. The event was created and promoted by Charles McArthur, an environmentalist. On June ...

  6. Bicycle drivetrain systems - Wikipedia

    en.wikipedia.org/wiki/Bicycle_drivetrain_systems

    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. Most also include some type of a mechanism to convert speed and torque via gear ratios .

  7. ZAP (motor company) - Wikipedia

    en.wikipedia.org/wiki/ZAP_(motor_company)

    In May 2000, ZAP introduced a line of sea scooters with battery-powered propulsion, [26] and the KICK-PUSH Scooter. [27] Also, the company appointed John Dabels as President of ZAP following the acquisition of EMB in 1999. Dabels was the former marketing director of the GM EV1 program. [25] [28]

  8. Motorized bicycle - Wikipedia

    en.wikipedia.org/wiki/Motorized_bicycle

    A motorized bicycle is a bicycle with an motor or engine and transmission used either to power the vehicle unassisted, or to assist with pedalling. Since it sometimes retains both pedals and a discrete connected drive for rider-powered propulsion, the motorized bicycle is in technical terms a true bicycle, albeit a power-assisted one.

  9. Synchronous dynamic random-access memory - Wikipedia

    en.wikipedia.org/wiki/Synchronous_dynamic_random...

    The clock may be stopped during this time. While self-refresh mode consumes slightly more power than power-down mode, it allows the memory controller to be disabled entirely, which commonly more than makes up the difference. SDRAM designed for battery-powered devices offers some additional power-saving options.

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