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A single-speed bicycle is a type of bicycle with a single gear ratio. These bicycles are without derailleur gears, hub gearing or other methods for varying the gear ratio of the bicycle. There are many types of modern single speed bicycles; BMX bicycles, most bicycles designed for children, cruiser type bicycles, classic commuter bicycles ...
As a general rule, fixed-gear bicycles are single-speed. A derailleur for gear selection would introduce chain slack, which would interfere with braking. Gear selection can, however, be accomplished with the use of an internally geared hub. For example, a Sturmey-Archer fixed-gear three-speed hub is a fixed-gear multi-speed arrangement. Most ...
Bicycle drivetrain systems have been developed to transmit power from riders to drive wheels by a variety of methods. Most bicycle drivetrain systems incorporate a freewheel to allow coasting, but direct-drive and fixed-gear systems do not. The latter are sometimes also described as bicycle brake systems. A belt-drive crankset.
A lugged steel bicycle has a frame made of steel. A plastic bicycle was an attempt in the early 1980s to introduce a bicycle made entirely out of plastic materials instead of metal. A wooden bicycle has a frame made out of wood. One example is the Chukudu used in the east of the Democratic Republic of Congo.
Single-speed or two speed motors are designed for coupling to gear motor system gearboxes. Conical rotor brake motors are also used to power micro speed drives. Motors of this type can also be found on overhead cranes and hoists. The micro speed unit combines two motors and an intermediate gear reducer.
The Regera does not have a traditional multi-gear transmission but instead features a single-speed fixed-gear transmission, often called a direct-drive, with a 2.73:1 reduction ratio, meaning the crankshaft mounted on the ICE will rotate 2.73 times for every 1 time that the output shaft of the direct-drive mechanism will rotate. [32]
1,378–1,381 mm (54.3–54.4 in) Kerb weight. 2,140–2,305 kg (4,717.9–5,081.7 lb) The Porsche Taycan is a battery electric luxury sports sedan and shooting brake car produced by German automobile manufacturer Porsche. The concept version of the Taycan named the Porsche Mission E, debuted at the 2015 Frankfurt Motor Show. [6]
The ISO threading for freewheels (Single or Multiple Speed) is the same as for track/fixed cogs. A standard single-speed BMX style freewheel can be used on the track threads of the hub. Because of the stepped down lock ring threads, not as many threads of the freewheel engage the hub threads as they would if it were threaded to a freewheel ...
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