What is the best dirt bike to start out on I'm 5'9 and 180 pounds I'm just looking to get a cheap bike for my first one and was wondering what cc and type bike I should get?

Well i would get a Honda CRF250F. Those might be a little to strong for just starting but they are awesome. I started out with a Honda CRF200F and that was too small and im 5'7. So pretty much anything higher than that would be about right for your height and weight. you can also get alot cheap Chinese ones. they are just as powerful and you can buy them for about $500USD. they mainly sell them on eBay

The problem with the Chinese bikes is that they fall apart very easily. I bought a 125cc a (generic) which means its an unknown brand. Honda, Suzuki, Kawasaki, or Yamaha. Those are the 4 top brands in Motocross or Trail Riding. Only go for those brands unless you are just going to be riding around in your yard. If you want to go on Trails or jumps then get the top 4 I named for you.