●Product Specifications: 5 holes PCD114.3 Thickness: 1.2 inches (30 mm), Inner Diameter: 2.4 inches (60 mm), Outer Diameter: 5.9 inches (150 mm), Thread Pitch: M12 x P1.5 ●Process: Manufactured with high strength aluminum forged (A6061-T6). CNC Lathe and Milling Machine Machined for Precision ●Surface Treatment: Anodized aluminum treatment prevents corrosion and rust and maintains quality for a long time ●Hub Included: Compared to traditional wide tretzo spatula with no hubs, the hubring makes it easier to pull out the center of the hoistle ●Product Contents: 2 forged wide tread spacers with special designed nuts