No one person invented the dirt bike. People began to modify their bikes to ride in the dirt, starting with knobby tires and better suspensions, changing gearing/sprockets, frames, doing everything posssible to lighten and strengthen them, getting rid of parts not needed in dirt riding (lites, horn, etc.).
The first motorcycle designed specifically for offroad use may have been by Sigfried Bettmann of Coventry, England, for Triumph Motorcycles in the year 1914
Just save your money and look for a decent used bike for a first bike. There are lots of good used dirt bikes if you know what to look at when buying a bike.
It looked like a regular bycycle, but with a motor and just a little widthier than a bike.
small, with black plastic finger grip on it,
Look at the muffler bearings first and then check the blinker fluid if the don't work call walmart
look on the front on the frame you will see a vin numberwrite that down and call a dirt bike mechanic or call suzuki
When purchasing a dirt bike it is important to look at certain features, whether the bike is set up for more hard or soft terrain, the engine size, what upgrade are available, what time of customized parts are available like grips, pedals and exhausts. Also a good feature to look at is whether or not is has elevated tread blocks.
look for leaks and craks and dents
dirt bike i would look for a 200-300 cc street i would look for a 650-700
Well it really depends on what size of dirt bike you get. For example: if you get a 50cc bike it will mabe go 20mph, but if you get a 450 it could go from 50 to 60 mph. so to get a definite answer go to your dirt bike companies website, and look at the bikes facts.
Sit on the bike. If you’ve chosen the right size bike, your feet should just be able to touch the ground. Now, look at where you are on the sit. If you are like most beginners, you will be way too far back. A dirt bike seat has a natural indentation where the seat meets the gas tank. That is where you want your butt.
Google "how to replace dirt bike tires" or look at forums at thumper talk http://www.thumpertalk.com/forum/showthread.php?t=390735
Justin Bieber's bike is a dirt bike. On the dirt bike it has a picture of him and his ex girlfriend. The dirt bike cost $10,000 which is a lot of money. The speed of this bike is 9 miles for 30 minutes.