Built around Suzuki's super motard motorcycle platform, the 2018 Suzuki DR-Z400SM utilizes a 398 cc (24.3 cu in) liquid-cooled single cylinder, four-stroke layout. Internal engine geometry specifies a bore and stroke of 90.0 x 62.6 mm (3.5 x 2.5 inches) with a 11.3:1 compression ratio.
On the scales, the DR-Z400SM measures 146 kg (322 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 890 mm (35 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,460 mm (57.5 in) wheelbase engineered for balanced agility and highway composure. The 9.84-liter (2.6 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Suzuki archive, this model family spans 16 indexed model years from 2008 to 2024, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
890 mm (35 in)
Engine
Displacement398.0 ccm (24.29 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Compression11.3:1
Bore x Stroke90.0 x 62.6 mm (3.5 x 2.5 inches)
Valves/Cylinder4
Fuel SystemCarburettor. Mikuni BSR36, single
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionCDI
LubricationSemi-dry sump
CoolingLiquid
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchMulti-plate, wet type, manual release
DrivelineRK520KZO, 110 links
Chassis
Front SuspensionInverted telescopic, coil spring, oil damped
Rear SuspensionLink type, coil spring, oil damped, adjustable spring preload
Wheelbase1460 mm (57.5 inches)
Ground Clearance260 mm (10.2 inches)
Wheels & Brakes
Front Tyre120/70-17
Rear Tyre140/70-17
Front BrakesSingle disc. Floating rotor
Front Brake Ø300 mm (11.8 inches)
Rear BrakesSingle disc
Rear Brake Ø240 mm (9.4 inches)
WheelsGold-anodized RK Excel aluminum rims with stainless steel spokes
Dimensions & Weight
Weight incl.146.0 kg (321.9 pounds)
Seat Height890 mm (35.0 inches) If adjustable, lowest setting.
Overall Height1200 mm (47.2 inches)
Overall Length2225 mm (87.6 inches)
Overall Width855 mm (33.7 inches)
Fuel Capacity9.84 litres (2.60 US gallons)
Other
StarterElectric
Color OptionsSolid Black
LightOn-road legal lighting with bright 60/55 watt halogen headlight.
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.
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.
