In 2004, British motorcycle manufacturer Triumph introduced the Thruxton, a standard bike named after the motor racing circuit in 1969 – a race in which the company achieved a sweep of the first three positions. A slightly more polished and powerful variant of Triumph’s flagship Bonneville bike, the Thruxton – apart from a swap of a color scheme for a pair of new ones – received no changes for its 2005 iteration.
The 2005 Triumph Thruxton had a manufacturer’s suggested retail price of $7,999 and is made out of a steel frame, with the customary fenders and a chain guard. Customers can choose between a Jet Black/Silver, Caspian Blue/Silver, or Racing Yellow/Silver color scheme. (The last two replaced the Sunset Red/Silver color finish.) A one-piece vinyl seat – set at a height of 31.1 inches (789.9 millimeters) – provides enough room for two occupants, and a kick stand is in place for parking the bike. Instrumentation on the 2005 Thruxton comprises a tachometer, trip odometer, and speedometer. Also included on the bike are a halogen headlight and a pair of side mirrors to assist the driver when visibility is limited.
The 2005 Triumph Thruxton is officially referred to as the ""Triumph Thruxton 900,"" with the numerical suffix representing the rounded-up number for its engine displacement, at 865 cubic centimeters. The engine itself is a four-stroke air-cooled parallel twin (or two-cylinder) engine that generates 69 horsepower at 7,250 revolutions per minute (RPM) and 53 pound-feet of torque at 5,750 RPM. Using a double overhead camshaft intake valve configuration, the engine has eight intake valves, with four on each of its two cylinders. It has a bore and stroke of 90 x 68 mm (3.54 x 2.68 inches) and compression ratio of 10.2 to 1.
Two carburetors fuel the 2005 Triumph Thruxton engine, which is paired with a five-speed manual transmission and is ignited using the bike’s electric starter. The peak fuel capacity on the 2005 Thruxton is measured at 4.2 gallons (16 liters).
Triumph provided the 2005 Triumph Thruxton with a pair of disc brakes for terrific stopping power. A 12.6-inch (320-mm) dual disc is placed at the front; while a smaller, 10-inch (255-mm) disc is placed at the rear. The 2005 Thruxton uses a suspension consisting of a 1.6-inch (41-mm) telescopic fork and steel twin-sided swing arm with two rear shock absorbers. The bike rides on front 18-inch and rear 17-inch aluminum wheels fitted with tubeless tires.
The 2005 Triumph Thruxton is 84.6 inches (2,148.8 millimeters) in length, 27.4 inches (695 mm) in width, and 43.1 inches (1,095 mm) in width, with a wheelbase of 56.7 inches (1,490 mm). The dry weight of the 2005 Thruxton is measured at 451 lbs. (205 kilograms).
A no-frills standard bike, the 2005 Triumph Thruxton is perfect for efficient performance and straightforward usability. There are several more exciting bikes out there, but few that stick solidly to the basics.