Just for additional info, 5204 becomes a 3204 (double row angular contact ball bearing) in some parts of the world. To help identifying bearings, multiply the last number X 5 to give you the bore size (not for very small bearings though, below 20 mm, when a code number system is used). Hope this helps.
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!