This is the one single brake disc. If you plan to change discs on the entire axle then you should buy two products.
Dimensions and size
|Brake Disc Thickness||8||mm|
|Inspection Tag||ECE R90 APPROVED|
|Number of Holes||4|
|Supplementary Article/Info 2||without wheel bearing|
|Bolt Hole Circle Ø||52.3 mm|
|Brake Disc Type||Solid|