Disc Brake Rotor 140mm 160mm 180mm 203mm Centerline 6 Bolt Disk For NUTT E-bike Mountain Bike Road Bicycles Scooter

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How to measure the diameter of your Rdotor (disc)？

1.The size is usually marked on the rotor(disc).

2. Use a tape measure or other tool to measure the maximum outer diameter of the rotor (disc) to get the size .