A BMW R 18 Classic averages €23,065 across all model years. Right now 7 are listed for sale, with the cheapest sitting around €15,445 (typically older years) and the priciest around €33,567 (recent years). The median is €20,900. A good price for a BMW R 18 Classic is under €17,224; anything over €28,546 is on the high side compared with similar listings. Selling to a dealer instead of privately usually means a lower price: expect roughly €15,675 to €18,810 for this model, depending on year and condition.