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MotoLibrary Score
45/100Balanced
Power/Weight
0.25 hp/kg
Torque
55 Nm
Engine
647 ccm
Technical Overview
2003 Honda NT 650 Deauville Technical Analysis & Specification Breakdown
Positioned in Honda's touring motorcycle lineup, the 2003 Honda NT 650 Deauville relies on a 647 cc (39.5 cu in) liquid-cooled v2, four-stroke powerplant. In factory specification, peak output is rated at 56 HP (40.9 kW) at 7,750 rpm while maximum torque reaches 55 Nm (40.6 lb-ft) at 6,250 rpm, transferring power to the rear wheel through a 5-speed gearbox and shaft drive (cardan) final drive. With a specific output of 86.6 HP per liter and a 1,500 rpm working window between peak torque (6,250 rpm) and peak power (7,750 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 NT 650 Deauville measures 223 kg (492 lbs) dry, translating to a power-to-weight ratio of 0.25 HP/kg (3.98 kg per horsepower). Rider ergonomics and chassis geometry center around a 814 mm (32 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance. The 19.5-liter (5.2 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
86.6 HP/L
Power-to-Weight
0.25 HP/kg (3.98 kg/HP)
Power Band Window
6,250–7,750 rpm
Standover Height
814 mm (32 in)
Engine
Displacement647.0 ccm (39.48 cubic inches)
Engine TypeV2, four-stroke
Engine DetailsV2, four-stroke
Power56.0 HP (40.9 kW)) @ 7750 RPM
Torque55.0 Nm (5.6 kgf-m or 40.6 ft.lbs) @ 6250 RPM
Bore x Stroke79.0 x 66.0 mm (3.1 x 2.6 inches)
CoolingLiquid
Transmission
Gearbox5-speed
Final DriveShaft drive (cardan) (final drive)
Wheels & Brakes
Front Tyre120/70-17
Rear Tyre150/70-17
Front BrakesDouble disc
Rear BrakesSingle disc
Dimensions & Weight
Dry Weight223.0 kg (491.6 pounds)
Power/Weight0.2511 HP/kg
Seat Height814 mm (32.0 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.
