A BMW R 18 B averages €26,742 across all model years. Right now 5 are listed for sale, with the cheapest sitting around €20,945 (typically older years) and the priciest around €32,374 (recent years). The median is €25,990. A good price for a BMW R 18 B is under €24,450; anything over €29,950 is on the high side compared with similar listings. Selling to a dealer instead of privately usually means a lower price: expect roughly €19,492 to €23,391 for this model, depending on year and condition.