As I understand it, Helder and Paulo are using CRF450R's for this rally, not the usual X based bike. The weld on the frame seems to back that up as it's decidedly more angular on the R than the X which is more of a rounded weld. R on the left, X on the right. But then again, the weld on Paulo's looks completely different as well. Perhaps it's an older CRF frame? I know, nerd central.