Mountain Bike Plated Cooling Disc Brake Rotor 6 Nails Cycling Accessories(140mm 5.5in )

Design of the floating buckle makes the outer disc not directly locked with the hub, leaving room for expansion; the five-hole 75 degrees fixed connection design, the most stable form of force, can avoid the longitudinal expansion of the high temperature brake disc during braking vibration. Frame aviation aluminum alloy has good hardness, toughness, metal anodizing, excellent corrosion resistance, strengthened angle design, and has better tensile and shock absorption. Outer frame is made of stainless steel with a hardness of 38‑42 degrees , which has good wear resistance, toughness, corrosion resistance, tensile strength and resistance to deformation. Item Type: Disc Brake Rotor Material: Aluminum Alloy + Stainless Steel + Coating Six Nails Diagonal Hole Distance : Approx. 44mm Celsius 1.7in