ITEM NAME:Bicycle Disc Brake Rotor 6-Bolt 140mm Mechanical Disc Brake Front or Rear Rotors Description: -This 6-bolt Mechanical Disc Brake rotor made of premium SUS410 stainless steel material-ultralight, solid and high strength -Outside Diameter: 160mm. Center Distance: 44mm. Thickness: 1.9mm. weight: 65g -Floating discs can effectively reduce brake pad weight and reduce heat transfer -The opening on the disc is designed for quick cooling to provide perfect heat dissipation - Large braking area and quick braking in emergency situations. Package Includes: 1 Piece Disc Brake Rotor 6 Pieces Bolts Note: Only ONE PIECE not 1 Pair SKU: DMO0009896854049371.1 Piece Disc Brake Rotor. -The opening on the disc is designed for quick cooling to provide perfect heat dissipation. -Floating discs can effectively reduce brake pad weight and reduce heat transfer. Center Distance: 44mm.