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From a mechanical viewpoint, up to 99% of the mechanical energy delivered by the rider into the pedals is transmitted to the wheels (clean, lubricated new chain at 400 W), although the use of gearing mechanisms reduces this by 1–7% (clean, well-lubricated derailleurs and a straight chainline), 4–12% (chain with 3-speed hubs), or 10–20% (shaft drive with 3-speed hubs).
Hub gear: a gearbox mounted inside the hub, 3-speed is common, 5, 7 are available ("Sturmey-Archer"), Enviolo makes a CVT, and Rohloff makes a 14-speed hub. Cable operated by one or two cables; Indicator: a turn signal; Inner tube: a bladder that contains air to inflate a tire. Has a Schrader, "Woods"/"Dunlop" or Presta valve for inflation and ...
An electric bicycle, e-bike, electrically assisted pedal cycles, or electrically power assisted cycles.[1] It is a motorized bicycle with an integrated electric motor used to assist propulsion. [2][3][4][5][6] Many kinds of e-bikes are available worldwide, but they generally fall into two broad categories: bikes that assist the rider's pedal ...
Ross began making bicycles in 1946, [23] and by the late 1960s, manufactured about 1 million bicycles per year. [3] By 1985, it had sold 10 million bicycles. The company, still known as Chain Bicycle Corporation, marketed bikes under the Ross brand, [6] including children's, BMX, touring, cruiser, mountain, racing, wheelie, and stationary exercise bicycles.
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Website. www.qbp.com. Quality Bicycle Products (QBP) is a large distributor of bicycle parts and accessories in the bicycle industry, based in the United States, [2] with revenues of $150 million in 2008. [3][4] In addition to wholesaling bicycles and components from other manufacturers, QBP owns and manufactures several brands of its own.
The Consumer Product Safety Act defines the term low speed electric bicycle as a two- or three-wheeled vehicle with fully operable pedals and an electric motor of less than 750 watts (1 horsepower), whose maximum speed on a paved level surface, when powered solely by such a motor while ridden by an operator who weighs 170 pounds, is less than ...
They manufacture and market bicycle chains and master links under their own KMC brand and supply them to others, including Shimano. [4] KMC chains are used in the Tour de France by riders such as Gustav Larsson, Swedish time trial champion. [5] KMC was founded by Charles Wu in 1977, [1] and was the largest bicycle chain manufacturer in the ...
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