According to the BMW microfiche there are two different part numbers for the left (34112314893) and right (34112314894) rotors up to 1/2001. After that date they are the same part number (34112338228) at least through 11/2007.
Pete, good catch. Now that I am looking at the drill pattern on my 2000 I see that they are definately directional. See photos
The rows alternating of 3 and 4 are angled to the rear starting from the inner edge leading back to the outer edge. The newer rotors are symetrical and could be flipped without changing the pattern direction.
So the question then is are rotors from 02 and up interchangable with the earlier years or do they match up to the style of caliper?
A forum community dedicated to BMW Luxury Touring motorcycle owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, reviews, and more!