not all are. if you want to do dirt jumping i recommend you do not use a normal mountain bike. get a proper dirt jump bike. i used a felt q520 xc bike to dirt jump and the forks broke and i took it in and the mechanic said i had damaged the frame and it was close to snapping.
you get mx bikes which is mountain cross an American expression for 4x.
yes, dirt bikes are motorized
Because it's awesome. I ride mountain bikes competitively; however, dirt bikes add an extra dimension of fun.entertainment. people ride because its fun to do. it can also be for compitition, or even transportation.
dirt bikes
Everybody that races dirt bikes "started" racing dirt bikes at some point.
dirt bikes in the past had less gears and power then dirt bikes have today
Depending on your purpose, a motorcycle ramp can also be used for bicycles. However, they are specifically designed for motorcycles and motocross dirt bikes.
no dirt bikes arn't illegal
no there not dirt bike is better
The two main types of dirt bikes are motocross and trail bikes. Yamaha, Kawasaki, and Honda all make these types of dirt bikes.
dirt-biking is for dirt-bikes it can be either stunt or mud riding
There are a few dirt bikes that you can buy that are cheap. Some generic dirt bikes you can buy are 200 CC, Yamaha and you can have bikes shipped to you from China.