A Triumph Rocket 3 GT averages €17,996 across all model years. Right now 5 are listed for sale, with the cheapest sitting around €17,445 (typically older years) and the priciest around €18,445 (recent years). The median is €17,950. A good price for a Triumph Rocket 3 GT is under €17,745; anything over €18,395 is on the high side compared with similar listings. Selling to a dealer instead of privately usually means a lower price: expect roughly €13,462 to €16,155 for this model, depending on year and condition.