The front pads and front rotors are the same as the 450r. I use Honda pads and Antrax wavy rotors.These rotors worked out at £30 each. I do not know if availible in the US. They maybe under another name , not sure. Hope this helps.
Well that makes sense because you brake more with your front than you do with your rear. I hardly ever use my rear. The only time I really use it is if I am stuck going up hill and need to get going again, I hold the rear brake as I start accelerating or when I am trying to avoid a big issue.