FactUp(EmpTech): Wanna know Bicycles?

Riding a bicycle is a great way to get around. Bicycles are quiet, fun to ride, and you don’t need gas or electricity to make them go. You just use the power of your legs!Bicycles have two wheels. One wheel is in front of the other. You swing your leg over the bike, sit down, and start pedaling.
Bicycle, vehicle usually consisting of two wheels fixed to a frame, steered by handlebars, and propelled by an arrangement of pedals and gears that are driven by the feet. Different types of bicycle are tailored for different kinds of riding. The term bicycle is sometimes extended to include rider-propelled three-wheeled tricycles, which are favored by young children and others, such as some senior citizens, who lack the balance needed to operate a two-wheeled bicycle.

II.	TYPES OF BICYCLES

Road bicycles are designed to be ridden fast on smooth pavement. They have smooth, skinny tires and "drop" handlebars, and can be used for on-road racing. They are usually lighter than other types of bicycles. They can be ridden on paved trails, but most people find them uncomfortable and unstable on unpaved trails. Most road bikes are not capable of carrying heavy loads.

Touring bicycles are another special type of road bike. They are designed to be ridden on pavement, but are more durable for use on self-supported long-distance riding. They have all of the necessary mounting bolts for cargo racks and fenders, and although they still have a drop handlebar, they usually have a more relaxed frame design so that the rider is more upright, for more comfort when riding long distances for multiple days at a time. They have a lower gear range compared to regular road bikes, to allow for carrying heavy loads up steep hills. They also make good commuter bicycles, because of their durability and ability to carry heavy loads.

Triathlon/Time Trial Bicycles are road bikes with a special design that maximizes their aerodynamic properties. The handlebars are also a special aerodynamic design that allows you to crouch forward while riding, to minimize the wind resistance against your body. Triathlon/time trial races usually have staggered starts, where each racer starts on his/her own; these bicycles are usually not allowed to be used in mass-start races.

Track/Fixed-Gear Bicycles or fixies are designed to be ridden on a velodrome, which is a banked oval track specifically for bicycle racing. Some commuters prefer track bikes, however, due to their simple design, which makes them easy to maintain. They have a single gear that does not provide the ability to coast, so if the bike is moving, your feet must be pedaling. For even more simplicity, some riders prefer to not have brakes, since the fixed-gear mechanism can act as a brake. Most track bikes have drop handlebars, but some riders outfit theirs with flat or upright handlebars.

Mountain Bicycles are design for riding rough off-road trails. They have flat or upright handlebars, and a very low gear range for pedaling up steep trails. Most mountain bikes have some type of shock absorbers or suspension. Mountain bikes with front suspension only are called hardtails; mountain bikes with both front and rear suspension are called full-suspension bikes or duallies. Mountain bikes with no suspension are called rigid. Mountain bikes can be outfitted for use as touring or commuting bikes, although they would not be as light or efficient as traditional touring or commuting bikes.

City Bikes

The term "city bike" doesn't really refer to a specific category of bikes; it's more of a general descriptive term. They might also be called "commuter" or "urban" bikes, although any of the bikes listed on this page can be used quite well for riding and commuting in a city. However, there is a certain type of bike that most people have in mind when they use the term "city bike." This bike has characteristics of both a hybrid bike and a cruiser bike--usually the upright riding position of a cruiser, but the wheel size of a hybrid bike.

BMX Bikes are popular with kids because of their small size, but they are used by adults and kids alike for various styles of trick and stunt riding.

Folding Bicycles are ideal for those who need to travel with their bike, want a bike to keep on their boat or plane, or who live in small apartments and don't have a lot of storage space. They're also good for commuters who need to take their bike on a bus or train for part of their commute, or who don't have a safe place to park their bike at work. Most folding bikes have smaller wheels, which makes the bike a little less efficient and trickier to handle than a standard bike, but most folding bike fans feel the benefits outweigh the disadvantages.