A Triumph Trident 800 averages €11,321 across all model years. Right now 17 are listed for sale, with the cheapest sitting around €11,195 (typically older years) and the priciest around €11,690 (recent years). The median is €11,345. A good price for a Triumph Trident 800 is under €11,195; anything over €11,345 is on the high side compared with similar listings. Selling to a dealer instead of privately usually means a lower price: expect roughly €8,509 to €10,210 for this model, depending on year and condition.