320mm (12.6") OD., 56.3mm I.D., 5x 8.7mm (5/16") bored mounting holes. Mount hole to hole distance 48.6mm. Mount style 'K'. Fits Pan America models with OEM or models converted to OEM 19" laced (spoke) wheels only. All Moto-Master brake rotors are manufactured from premium stainless steel, offering superb braking ability and are highly corrosion resistant. CNC machined, laser cut and precision double grinded within the tightest tolerance to eliminate any brake rotor vibration. All Moto-Master brake discs are made in Europe and approved. - Stainless - Black aluminum inner carrier - For models with laced wheel - Thickness: 5.0 mm - No speedometer gap - Pitch 82.6mm - Comes with approval - OEM replacement reference 41500195. Note: Check your local MCS dealer or the MCS sales department for exact type of approval and validity on bike model and years on the test report.