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MotoLibrary Score
38/100Commuter
Power/Weight
0.13 hp/kg
Torque
27 Nm
Engine
399 ccm
Technical Overview
2022 Yamaha SR400 Final Edition Technical Analysis & Specification Breakdown
At the heart of the 2022 Yamaha SR400 Final Edition allround motorcycle, Yamaha relies on a 399 cc (24.4 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 22.9 HP (16.7 kW) at 6,500 rpm while maximum torque reaches 27.4 Nm (20.2 lb-ft) at 3,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 57.4 HP per liter and a 3,500 rpm working window between peak torque (3,000 rpm) and peak power (6,500 rpm), the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
On the scales, the SR400 Final Edition measures 174 kg (384 lbs) wet (curb), translating to a power-to-weight ratio of 0.13 HP/kg (7.6 kg per horsepower). Rider ergonomics and chassis geometry center around a 785 mm (30.9 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,410 mm (55.5 in) wheelbase engineered for quick, flickable steering geometry. The 12-liter (3.2 US gal) fuel tank paired with a rated consumption of 3.56 L/100 km provides an estimated theoretical range of roughly 337 km (209 miles) between fill-ups.
Specific Output
57.4 HP/L
Power-to-Weight
0.13 HP/kg (7.6 kg/HP)
Power Band Window
3,000–6,500 rpm
Theoretical Range
~337 km (209 mi)
Engine
Displacement399.0 ccm (24.35 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power22.9 HP (16.7 kW)) @ 6500 RPM
Torque27.4 Nm (2.8 kgf-m or 20.2 ft.lbs) @ 3000 RPM
Compression8.5:1
Bore x Stroke87.0 x 62.7 mm (3.4 x 2.5 inches)
Valves/Cylinder2
Fuel SystemInjection
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionTCI: Transistor Controlled Ignition
LubricationWet-sump
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchWet, Multiple Disc
Performance
Fuel Consumption3.56 litres/100 km (28.1 km/l or 66.07 mpg)
Greenhouse Gases82.6 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Frame TypeSemi Double Cradle
Rake27.7°
Trail112 mm (4.4 inches)
Front SuspensionTelescopic
Front Travel150 mm (5.9 inches)
Rear SuspensionSwDual shock swingarm
Rear Travel105 mm (4.1 inches)
Wheelbase1410 mm (55.5 inches)
Ground Clearance130 mm (5.1 inches)
Wheels & Brakes
Front Tyre90/100-18
Rear Tyre110/90-18
Front BrakesSingle disc. Hydraulic.
Front Brake Ø298 mm (11.7 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Ø150 mm (5.9 inches)
WheelsWire spoked
Dimensions & Weight
Weight incl.174.0 kg (383.6 pounds)
Seat Height785 mm (30.9 inches) If adjustable, lowest setting.
Overall Height1095 mm (43.1 inches)
Overall Length2085 mm (82.1 inches)
Overall Width750 mm (29.5 inches)
Fuel Capacity12.00 litres (3.17 US gallons)
Oil Capacity2.40 litres (2.54 US quarts)
Other
StarterKick
Color OptionsDark Grey Metallic, Purple Blue Metallic
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.
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.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
