Disc Brake Rotor Converter

Choppers U.S. Billet Aluminum Spin On Disc Brake Rotor Mount for Converting Flip Flop Hubs to Freewheel/Disc Combo; Also Used for Extra Wide Sturmey Archer 3 Speed Hubs; CNC machined out of 6061 Billet Aluminum; Due to Oversize Threads You Will Need to Consider Your Rotor Options - Choppers U.S. Star and Iron Cross Rotors are Designed to Bolt Directly to This Converter, But If You Wish to Use a Standard Disc Rotor You Will Need to Do Some Basic Machining to it (i.e. Opening Up the Center Hole and Re-Drilling the Rotor Mounting Screws on Your Standard Rotor).