the rotor that is warping is the rear rotor only, the first one was the stock tektro rotor (140mm) I then replaced it with an avid hs1 160mm rotor. I am 65 kgs (I'm 16 years old) I ride a mix of dust, mud and petty much every terrain. The avid and tektro are both warped, I don't mind too much I just want to know what it might beWhat size rotors? Are you warping both or just one? What sort of terrain are you riding? How much do you weigh? What kind of rotors? Presumably at least one of them was the stock one, what did you replace it with? Did it warp too, or has the other stock one now warped? Your post is pretty vague. I'm sure there's a reason the rotors are warping, but no good ideas why based on what you've told us so far.
What size is your front rotor? Do you use your front brakes as much or more than your rear? Braking should be something like 60%-80% done with the front brake, and the rest with the rear.[/QUO both the front and the rear are 160mm rotors and I use mainly the front so that is what is confusing me because I only use my rear brake when I have to