2003 Suzuki DR-Z 400 E Technical Analysis & Specification Breakdown
Built around Suzuki's enduro - offroad motorcycle platform, the 2003 Suzuki DR-Z 400 E relies on a 398 cc (24.3 cu in) liquid-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 48 HP (35 kW) at 9,000 rpm while maximum torque reaches 41 Nm (30.2 lb-ft) at 7,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 120.6 HP per liter and a 1,500 rpm working window between peak torque (7,500 rpm) and peak power (9,000 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the DR-Z 400 E measures 119 kg (262 lbs) dry, translating to a power-to-weight ratio of 0.4 HP/kg (2.48 kg per horsepower). Rider ergonomics and chassis geometry center around a 945 mm (37.2 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,475 mm (58.1 in) wheelbase engineered for balanced agility and highway composure. The 10-liter (2.6 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Suzuki archive, this model family spans 7 indexed model years from 2000 to 2007, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
120.6 HP/L
Power-to-Weight
0.4 HP/kg (2.48 kg/HP)
Power Band Window
7,500–9,000 rpm
Standover Height
945 mm (37.2 in)
Engine
Displacement398.0 ccm (24.29 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power48.0 HP (35.0 kW)) @ 9000 RPM
Torque41.0 Nm (4.2 kgf-m or 30.2 ft.lbs) @ 7500 RPM
Compression12.2:1
Bore x Stroke90.0 x 62.6 mm (3.5 x 2.5 inches)
Valves/Cylinder4
Fuel SystemCarburettor
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
CoolingLiquid
Transmission
Gearbox5-speed
Final DriveChain (final drive)
Chassis
Wheelbase1475 mm (58.1 inches)
Ground Clearance325 mm (12.8 inches)
Wheels & Brakes
Front Tyre80/100-21
Rear Tyre110/100-18
Front BrakesSingle disc
Rear BrakesSingle disc
Dimensions & Weight
Dry Weight119.0 kg (262.4 pounds)
Power/Weight0.4034 HP/kg
Seat Height945 mm (37.2 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.