Shimano brake rotor RT-MT900 -Quality: Shimano Dura Ace / Shimano XTR - Material: aluminum / stainless steel - Diameter: 160 mm - More effective heat dissipation due to cooling fin design - ICE TECHNOLOGIES brake rotor: sandwich composite made of stainless steel outside and an aluminum core Scope of delivery as shown, without Centerlock ring Item condition: Used: Item has already been used. An item with signs of wear, but in good condition Min. 1.7mm: Minimum thickness 1.7mm, therefore above wear limit. Recommended minimum thickness according to manufacturer 1.5mm. Discs may need to be checked for lateral runout and aligned after fitting. The product shown may differ from the product actually supplied