2004 Triumph America Technical Analysis & Specification Breakdown
Positioned in Triumph's classic motorcycle lineup, the 2004 Triumph America relies on a 790 cc (48.2 cu in) air-cooled twin, four-stroke powerplant. In factory specification, peak output is rated at 61 HP (44.5 kW) at 7,400 rpm while maximum torque reaches 60 Nm (44.3 lb-ft) at 3,500 rpm, transferring power to the rear wheel through a 5-speed gearbox. With a specific output of 77.2 HP per liter and a 3,900 rpm working window between peak torque (3,500 rpm) and peak power (7,400 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the America measures 226 kg (498 lbs) dry, translating to a power-to-weight ratio of 0.27 HP/kg (3.7 kg per horsepower). Rider ergonomics and chassis geometry center around a 720 mm (28.3 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,655 mm (65.2 in) wheelbase engineered for planted straight-line stability. The 16.6-liter (4.4 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Triumph archive, this model family spans 14 indexed model years from 2003 to 2016, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
77.2 HP/L
Power-to-Weight
0.27 HP/kg (3.7 kg/HP)
Power Band Window
3,500–7,400 rpm
Standover Height
720 mm (28.3 in)
Engine
Displacement790.0 ccm (48.21 cubic inches)
Engine TypeTwin, four-stroke
Engine DetailsTwin, four-stroke
Power61.0 HP (44.5 kW)) @ 7400 RPM
Torque60.0 Nm (6.1 kgf-m or 44.3 ft.lbs) @ 3500 RPM
Compression9.2:1
Bore x Stroke86.0 x 68.0 mm (3.4 x 2.7 inches)
Fuel SystemCarburettor
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
CoolingAir
Transmission
Gearbox5-speed
Chassis
Wheelbase1655 mm (65.2 inches)
Wheels & Brakes
Front Tyre110/80-R 18
Rear Tyre170/80-R 15
Front BrakesSingle disc
Front Brake Ø310 mm (12.2 inches)
Rear BrakesSingle disc
Rear Brake Ø285 mm (11.2 inches)
Dimensions & Weight
Dry Weight226.0 kg (498.2 pounds)
Power/Weight0.2699 HP/kg
Seat Height720 mm (28.3 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.