brand new 2021 Levo, SLX 4 pots, 203mm rotors front and rear. No idea what type brake pads, whatever Spesh specs. Rode one pretty steep downhill yesterday and rear rotor turned blue. Rode another less steep downhill 6-ish miles) and front went blue tto. Both howling and vibrating through the bike. Obviously will talk to shop I bought it from but pretty annoying. Always loved Shimano brakes but laat bike (2018 Levo) had Guide RE's and although they didn't feel as nice as Shimano they got the job done and never cooked rotors.....