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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.
Deutsche Bahn pedelecs with rear hub motors and batteries placed inside the frames.This is the "Jetstream" from Riese und Müller.. A Pedelec (from pedal electric cycle) or EPAC (electronically power assisted cycle), is a type of low-powered electric bicycle where the rider's pedalling is assisted by a small electric motor.
Portage strap: a strap (usually made of leather) attached to the inside of the bike frame, designed to make carrying the bike over one's shoulder easier; Pulley wheel: see Jockey wheel; Power meter: a device on a bicycle that measures the power output of the rider; Quick release: a skewer with a lever on one end that loosens when the lever is ...
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 .
The RevoPower is a motorized wheel concept, the idea being the conversion of a pedal-powered bicycle into a motorcycle. It was invented by Steve Katsaros, based in Denver , Colorado. The RevoPower concept is a wheel with a two-stroke engine inside it which allows the bike attached to it to travel up to 20 miles per hour (32 km/h) at over 100 ...
A Suntour Sprint rear derailleur A front derailleur manufactured by Suntour a pair of Suntour road brakes. In 1964, Suntour invented the slant-parallelogram rear derailleur. The parallelogram rear derailleur had gained prominence after Campagnolo's introduction of the "Gran Sport" in 1949, [7] [8] and the slant-parallelogram was an improvement of it that allowed the derailleur to maintain a ...