All Electra Bicycle Company bikes have the flat-foot technology; some other manufacturers have created their own flat-foot designs.
Flat-Foot Comfort Bicycles are a sub-category of cruiser bikes. Touring bicycles are another special type of road bike. They have a drop handlebar like regular road bikes, but the tires are a littler wider for more off-road traction, and they have a different style of brake that helps to prevent mud buildup in the frame.
These are often used as commuter bikes because they eliminate inconveniences associated with chains and pant-legs, but shaft-driven bicycles are less efficient than chain-driven bicycles. Chainless bicycles , either shaft-driven bicycles or belt-driven bicycles use a driveshaft or a belt-drive , respectively, rather than a chain to power the rear wheel. Retro-Direct bicycles have two sprockets on the rear wheel.
Derailleur gears , featured on most racing and touring bicycles, offering from 5 to 30 speeds. A moped propels the rider with a motor, but it usually includes bicycle pedals for human propulsion. A balance bicycle (a kind of velocipede ) and a Footbike use Flintstone power, as the rider pushes themselves along with one or both feet on the ground.
Hydrocycles have no wheels, but they use bicycle cranks, and pedals. A crank forward bicycle has the rider upright with the pedals far enough forward that the rider can reach the ground with his or her feet without getting off the saddle. An electric bicycle allows the rider the choice of pedaling or ‘coasting’; the bicycle being propelled by an electric motor, which is frequently incorporated into the front or rear hub.
Since it always 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. BMX bikes are designed for stunts, tricks, and racing on dirt BMX tracks. Triathlon bicycles have seatposts that are closer to vertical than the seatposts on road racing bicycles.
27.5 bikes are mountain bikes that are built to use 650B or ISO 584 mm wheels. 29ers are mountain bikes that are built to use 700C or ISO 622 mm wheels. Butcher’s Bikes typically have a basket or storage box mounted within a framework on the front of the bike, and would often feature an advertising sign attached within the main triangle of the bicycle frame.
Porteur bicycles are a kind of cargo bicycle designed for carrying loads on a platform rack attached to the fork. Freight bicycles are designed for transporting large or heavy loads. Comfort bike – essentially modern versions of the old roadster and sports roadster bicycle,1 though modern comfort bikes are often equipped with derailleur rather than hub gearing.
City bikes are designed to have reasonably quick, yet solid and predictable handling, and are normally fitted with full fenders for use in all weather conditions. Touring bicycles are designed for bicycle touring and long journeys. The Cycling City: Bicycles and Urban America in the 1890s (University of Chicago Press, 2015).
While historically most bike frames have been steel, recent designs, particularly of high-end racing bikes, have made extensive use of carbon and aluminum frames. For these groups, the industry responded with the hybrid bicycle, sometimes marketed as a city bike, cross bike, or commuter bike. Bicycle frames and components continue to get lighter and more aerodynamic without sacrificing strength largely through the use of computer aided design , finite element analysis , and computational fluid dynamics Recent discoveries about bicycle stability have been facilitated by computer simulations 49 Once designed, new technology is applied to manufacturing such as hydroforming and automated carbon fiber layup.
It was not until the middle of the decade the sport achieved critical mass, and manufacturers began creating bicycles designed specially for the sport. By 1990, the roadster was almost dead; while annual U.K. bicycle sales reached an all-time record of 2.8 million, almost all of them were mountain and road/sport models. In the late 1960s, Americans’ increasing consciousness of the value of exercise and later the advantage of energy efficient transportation led to the American bike boom of the 1970s Annual U.S. sales of adult bicycles doubled between 1960 and 1970, and doubled again between 1971 and 1975, the peak years of the adult cycling boom in the United States, eventually reaching nearly 17 million units.
Heavyweight cruiser bicycles , preferred by the typical (hobby) cyclist, 41 featuring balloon tires, pedal-driven “coaster” brakes and only one gear, were popular for their durability, comfort, streamlined appearance, and a significant array of accessories (lights, bells, springer forks, speedometers, etc..). Lighter cycles, with hand brakes, narrower tires, and a three-speed hub gearing system, often imported from England, first became popular in the United States in the late 1950s. Although multiple-speed bicycles were widely known by this time, most or all military bicycles used in the Second World War were single-speed. Bicycles continued to evolve to suit the varied needs of riders.
As with the gents’ roadster, the frame was of steel construction and the positioning of the frame and handlebars gave the rider a very upright riding position. 38 As with the original velocipede, safety bicycles had been much less comfortable than high-wheelers precisely because of the smaller wheel size, and frames were often buttressed with complicated bicycle suspension spring assemblies. In 1880, G.W. Pressey invented the high-wheeler American Star Bicycle , whose smaller front wheel was designed to decrease the frequency of “headers”.
Together with a mechanic named Gabert in his hometown of Lyon, Aimé Olivier created a diagonal single-piece frame made of wrought iron which was much stronger, and as the first bicycle craze took hold, many other blacksmiths began forming companies to make bicycles using the new design. In England, the velocipede earned the name of ” bone-shaker ” because of its rigid frame and iron-banded wheels that resulted in a “bone-shaking experience for riders.” Pedaling made it easier for riders to propel the machine at speed, but the rotational speed limitation of this design created stability and comfort concerns which would lead to the large front wheel of the “penny farthing”.