BMX - advice for dirtriding

i need some adivce for dirt riding because i bought a poverty Buck99 about 6 months ago and i dont really know what kind of parts i should be looking for to put on it i already have alot that isnt stock on the bike but i need to know if they are good parts for dirt the parts i have on it r S&M Slam bars alex triple wall rims primo tenderizer peadals lucky irish stout sproket 39 tooth WeTHePeople pro cranks and a kmc 410h chain

Well you picked some pretty good parts for dirt jumping. The main thing you want to keep in mind when buying parts to ride dirt is that you may take some really hard landings so strengh is very important. Weight really depends on the rider if your big dont worry about it. But if your a strict dirt rider the best way to save weight is no pegs and no front brakes just have the bare nessecities on your bike to go and stop. The best advice I can give you is just ride as hard as you want with what you have ... and my moto is break it and replace it with something better so if that happens then just get something stronger. Its almost fool proof way to get your bike perfect.

are the things you need on a flatland bike different than you need on a dirt bike? can you have both in one? I'm looking to get into both and I'm still trying to figure out which bike will suit me best and what sorts of things I need on it.

Your going to have a problem if you want to do both dirt and flatland. There is a very big difference between them and it is hard to fit everything you would need to be sucessful at both in one bike. With most dirt trail riding it is good to be able to get alot of speed which means a big chainwheel. While flatland you want as much torque and as much space as possible to do tricks so you would want a very small chainwheel. There is also the problem with pegs. On a dirt bike you really dont want pegs just because of the extra weight that goes along with the front brakes. They just weigh to much. Most other things you may be able to find a balance to but it may require some changing or adjusting of parts before you go riding. These include things like handlebar/seat placement. You may also find that tires play a factor but im sure you could find a high PSI tire that would still have traction in dirt. If you can find a way around these things you would just want to find a good all around bike, a nice set of strong rims, some metal pedals, and strong forks. I'm sorry if I forgot to mention anything but thats basicly everything if you are really thinking of riding hard on both dirt and flatland. Good luck.