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MotoLibrary Score
39/100Commuter
Power/Weight
0.16 hp/kg
Torque
36 Nm
Engine
395 ccm
Technical Overview
2019 Yamaha XMax 400 Iron Max Technical Analysis & Specification Breakdown
Built around Yamaha's scooter motorcycle platform, the 2019 Yamaha XMax 400 Iron Max relies on a 395 cc (24.1 cu in) single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 32.9 HP (24 kW) at 7,000 rpm while maximum torque reaches 36 Nm (26.6 lb-ft) at 6,000 rpm, transferring power to the rear wheel through belt final drive. With a specific output of 83.3 HP per liter and a 1,000 rpm working window between peak torque (6,000 rpm) and peak power (7,000 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 XMax 400 Iron Max measures 210 kg (463 lbs) wet (curb), translating to a power-to-weight ratio of 0.16 HP/kg (6.38 kg per horsepower). Rider ergonomics and chassis geometry center around a 800 mm (31.5 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,567 mm (61.7 in) wheelbase engineered for planted straight-line stability. The 13-liter (3.4 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
83.3 HP/L
Power-to-Weight
0.16 HP/kg (6.38 kg/HP)
Power Band Window
6,000–7,000 rpm
Standover Height
800 mm (31.5 in)
Engine
Displacement395.0 ccm (24.10 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power32.9 HP (24.0 kW)) @ 7000 RPM
Torque36.0 Nm (3.7 kgf-m or 26.6 ft.lbs) @ 6000 RPM
Compression10.6:1
Bore x Stroke83.0 x 73.0 mm (3.3 x 2.9 inches)
Fuel SystemInjection
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionTCI
LubricationWet sump
Transmission
Final DriveBelt (final drive)
Chassis
Front SuspensionTelescopic forks
Front Travel110 mm (4.3 inches)
Rear SuspensionUnit Swing
Rear Travel107 mm (4.2 inches)
Wheelbase1567 mm (61.7 inches)
Ground Clearance90 mm (3.5 inches)
Wheels & Brakes
Front Tyre120/70-15
Rear Tyre150/70-13
Front BrakesDouble disc
Front Brake Ø267 mm (10.5 inches)
Rear BrakesSingle disc
Rear Brake Ø267 mm (10.5 inches)
Dimensions & Weight
Weight incl.210.0 kg (463.0 pounds)
Seat Height800 mm (31.5 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.
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.
