New brakes from Avid. Apparently stronger power then XTR trail brakes and still light at around 205grams a side without cps hardware/clamps so probably 250g a side once everythings counted for excluding rotors. Probably too much power for me but i guess braking is one of those things that gets more useful the harder you ride. Of more interest is the new 170mm rotor standard. Might be good for those 29er riders wanting a little more power but not exactly 180mm power. Not a massive deal but if you had the choice before you purchased 160 or 180 rotors it is appreciable.