44/56mm

Hi all! I am wondering if anyone can shed some light on what to replace my headset with? Currently fitted to my Scott Genius eRide 920 is this (from the website): "Acros Blocklock / Tapered 1.5"-1 1/8", OD 52/62mm, ID 44/56mm" It's started creaking, I'm not sure I like (or need?) the blocklock...