Because of evolutions, and differences in requirements.
Some differences came simply from people learning from their mistakes, and improving the bicycle as technology would allow it.
Other came from the fact that different types of bikes are good at different types of riding, just like different types of tools are good at different types of work.
there is a pop a wheelie
The details of making a bike are dependent upon the type of bike that is desired. There are many different types of bikes. The details of making a motorbike or making a pedal bike are very different.
sportbike, touring, dirt bike, dual-sport
Easiest thing would be for you to do a search of different bike types, look at the pics and see which one that come closest to matching your bike
A jump bike is more suited toward jumps, tricks and fancy riding. A regular bike is not suited toward these types of activities but mostly for normal riding.
There is such thing as a bike that can brake both ways, right and left.
a physicist
Gore Bike Wear manufactures and sells many different types of bike wear and running shoes. They are the manufacturer of the Gore-Tex and Windstopper products.
There are a number of bike games available online. Some of these games include Mario BMX Remix, Police Bike, Winter Rider, Moto Risk, Stunt Dirt Bike and Spring Bike.
The online store Bike 24 sells a wide variety of different products. The main products Bike 24 sells includes bikes and various bike parts and accessories.
What bike? THERE IS ALL TYPES OF BIKES!
they are two different types of moter bike companies and the best and most popular one is the suzuki..