This disc brake rotor is made from hardened, corrosion resistant steel. Commonly, though not exclusively, used for 50cc to 300cc dirt bikes, ATVs, go karts, scooters and buggies. Approximate dimensions:
Outer Diameter: 190mm
Centre Hole: 35mm
Thickness: 3mm
Total Thickness: 10mm
Mounting Holes: 8mm
Mounting Hole Spacing (across): 56mm (centre to centre)
Mounting Hole Spacing (side by side): 40mm (centre to centre)