Features: 1.Stable performance,Utilizing the cross-drilling technology, the lightweight system ensures heat dissipation when used at high strength 2.The ability to adapt to the humid environment 3.Easy to Mount on your Disc Brake Ready Frame and Wheel For HS1 Rotor Description: Size: 160mm,180mm Material: Martensitic mechanics stainless steel Thickness: 1.8-1.9mm,more wear-resistant Weight: 98g(160mm),approx Opposite hole distance 44mm,standard size Installation way: standard 6 hole bolts Give 6pcs T25 standard rotor bolts. Color: Sliver/Multicolor For G3 Rotor Description: Size: 160mm,180mm,203mm Material: Martensitic mechanics stainless steel Thickness: 1.8-1.9mm,more wear-resistant Weight: 98g(180mm),approx Opposite hole distance 44mm,standard size Installation way: standard 6 hole bo.