Positioned in Suzuki's atv motorcycle lineup, the 2021 Suzuki KingQuad 400 relies on a 376 cc (22.9 cu in) air-cooled single cylinder, four-stroke powerplant. Internal engine geometry specifies a bore and stroke of 82.0 x 71.2 mm (3.2 x 2.8 inches) with a 9.0:1 compression ratio.
On the scales, the KingQuad 400 measures 279 kg (615 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 935 mm (36.8 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,270 mm (50 in) wheelbase engineered for quick, flickable steering geometry. The 16-liter (4.2 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Suzuki archive, this model family spans 2 indexed model years from 2015 to 2021, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
935 mm (36.8 in)
Engine
Displacement376.0 ccm (22.94 cubic inches)
Engine TypeSingle cylinder, four-stroke
Compression9.0:1
Bore x Stroke82.0 x 71.2 mm (3.2 x 2.8 inches)
Fuel SystemInjection
Fuel ControlOverhead Cams (OHC)
IgnitionCDI
LubricationWet sump
CoolingAir
Transmission
Gearbox5-speed
Final DriveShaft drive (cardan) (final drive)
Chassis
Front SuspensionIndependent, double wishbone, oil-damped. Spring preloaded
Rear SuspensionSwingarm, coil-sprung, oil-damped
Wheelbase1270 mm (50.0 inches)
Wheels & Brakes
Front Tyre25/8-12
Rear Tyre25/10-12
Front BrakesDouble disc
Rear BrakesExpanding brake (drum brake)
Dimensions & Weight
Weight incl.279.0 kg (615.1 pounds)
Seat Height935 mm (36.8 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.
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.
