Features: brand new and high quality NICE DESIGN - Follow the high-end disc 72-degree five-nail force design, the most stable and firm force method, Anti-scratch disc brake design. Designed to adjust the concentric position. It is excellent for all oil discs and mechanical discs. PREMIUM MATERIAL - CNC aluminum disc heart + stainless steel + aluminum wing heat sink. Using 7075 aluminum alloy is a cold-treated forged aluminum alloy with high strength and far better than mild steel, Aluminum wing heat sink provides better heat dissipation effect, The structure of the heat dissipation structure allows the heat to be better and quickly dissipated to ensure stable braking force. SPECIFLCATIONS - 140MM 160MM 180MM 203MM (common 160MM in the mountain bike; road bike disc brakes 140MM!). caution - (need to know the correct model you need before ordering so you get the right brake disc). WEIGHT - 86g of 140MM, 146g of 180MM, 180g of 203MM,110g of 160MM. SATISFACTORY SERVICE: If you have any questions, please contact us. We will do our best to serve you until you are satisfied. Specifications: Size: 140mm 160mm 180mm 203mm Color: Black, Red Note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1x Bike Disc Brake Rotor.