Ive looked and looked but cant seem to find any OEM BMW seats for the 1971 model of the R75/5. Ive seen copies with the ridges and the 'two-level' style foam but none with the proper shape/silhouette of the SWB early 71 seats. Are any of these still being manufactured other than seargent seats/etc? I know BMW Eurotech used to have them but it seems they went out of business a year ago. Anyone have any leads?