I do have on mine "little red" 304mm front discs internally vented and they DO HAVE holes in the face of the discs. These are Zimmermann 460.1513.52 & 460.1514.52
299mm rear discs are internally vented and they DO HAVE holes in the face of the discs as well. These are Zimmermann 460.1515.50 - yes, only one part number, was very strange to me but couldn't find that there was another part number; for another side ....., both discs has holes to the same direction ......
299mm rear discs are internally vented and they DO HAVE holes in the face of the discs as well. These are Zimmermann 460.1515.50 - yes, only one part number, was very strange to me but couldn't find that there was another part number; for another side ....., both discs has holes to the same direction ......
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