Yeah maybe with an extended axle and some offsets they will keep mud off you but so far Ive had no problems gettin sprayed from the rear tires. KTM sent them out to everyone with the promotion so maybe they thought most people would use them. If anyone needs a black set hit me up.
when I bought my 525xc there was some black extenders on it and i removed them and they had eaten my fenders so now my quads fenders are all scratched where the extenders would touch. anyone who wants a set I would let them go but just my advise if you put some make sure you're gonna keep em on cause it may scratch your fenders after a while with them on