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Selling a set of replacement brake parts from a StopTech four-wheel big-brake setup. Based on the StopTech specifications, this combination matches the 2000–2003 E39 M5 ST-40 big-brake kit with 355×32 mm rotors at both the front and rear. But should fit many different stop tech brake kits.

Included

• 4 StopTech slotted AeroRotor replacement friction rings\

• 2 unused\

• 2 lightly used\

• 355 mm outside diameter, approximately 14 inches\

• 32 mm nominal thickness\

• 30 mm StopTech discard/minimum thickness\

• 17 mm air gap\

• Directional left- and right-side rings\

• Part 31.737.1101.99 is the left side\

• Matching right-side part is 31.737.1102.99\

• Hat-mounting/drive-pin screws and hardware shown in the photos\

• These are replacement rotor friction rings only. The aluminum rotor hats, calipers, mounting brackets, brake lines, and other big-brake-kit components are not included.

Two rings have never been used, and two were lightly used. There is some normal storage oxidation and wear on the boxes, as shown in the pictures.