260mm (10.2") OD. Open center. 5 x 8.7mm (5/16") bored mounting holes. Mount hole to mount hole distance 89.3mm. Fits OEM cast wheel. Mount style 'M'. 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 - Outer diameters 260.0 mm - Inner diameter 135.0 mm - Thickness 5.0 mm - Number of holes 5 - Hole diameter 8.7 mm - Pitch 152.0 mm - Turning direction right side mount - Speedometer prepared No - Comes with approval - OEM replacement reference 41500185 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.