The ConMet 1.91" 10-Bolt Hole Disc Brake Rotor Service Kit is designed to provide superior performance and reliability. This kit is made with high quality material for durability and longevity and features a 10-Bolt hole design that allows for a secure and precise fit onto the wheel hub. This kit provides a more consistent and reliable braking experience. It has an outside diameter of 15.38". This kit is perfect for those looking for a reliable and efficient braking system. FleetPride is your First Click in Heavy Duty®.