A BMW R 1150 GS Adventure averages €4,649 across all model years. Right now 4 are listed for sale, with the cheapest sitting around €2,495 (typically older years) and the priciest around €6,500 (recent years). The median is €4,800. A good price for a BMW R 1150 GS Adventure is under €3,324; anything over €6,125 is on the high side compared with similar listings. Selling to a dealer instead of privately usually means a lower price: expect roughly €3,600 to €4,320 for this model, depending on year and condition.