Atv Ktm

I want to buy a KTM but cannot decide on a SX or xc and a 125 cc or 200 cc one?
This is my first dirt bike, but I have a atv, I track riding, but I want some opinions power.Any?
if you are only doing trail riding, I would suggest go with the EXC 200XC or … and if you is in large part go to any of the 250 or even 300. I have a lot of friends going to the versatile 300, which is commonly referred to as an accident cerebrovascular three because it has the clout of a stroke in February, but has the torque of a larger diameter of 4 times. Also, the 200 is more than enough power for any general trail rider, a truly competitive or harescrambles enduro bike for a lighter rider (up to about 150 pounds) … 250 to a maximum of 200-210 pounds and 300 if they are older or running in the expert / pro class … I personally would go with a 125, especially if you are planning on riding the trails only Most of the time …
KTM 525 XC ATV