A Triumph Bonneville Bobber averages €17,060 across all model years. Right now 10 are listed for sale, with the cheapest sitting around €11,490 (typically older years) and the priciest around €19,995 (recent years). The median is €19,395. A good price for a Triumph Bonneville Bobber is under €13,575; anything over €19,995 is on the high side compared with similar listings. Selling to a dealer instead of privately usually means a lower price: expect roughly €14,546 to €17,456 for this model, depending on year and condition.