Positioned in Honda's atv motorcycle lineup, the 2022 Honda TRX420 relies on a 420 cc (25.6 cu in) liquid-cooled single cylinder, four-stroke powerplant. Internal engine geometry specifies a bore and stroke of 86.5 x 71.5 mm (3.4 x 2.8 inches) with a 9.9:1 compression ratio.
On the scales, the TRX420 measures 264 kg (582 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 855 mm (33.7 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,269 mm (50 in) wheelbase engineered for quick, flickable steering geometry. The 14.5-liter (3.8 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Standover Height
855 mm (33.7 in)
Engine
Displacement420.0 ccm (25.63 cubic inches)
Engine TypeSingle cylinder, four-stroke
Compression9.9:1
Bore x Stroke86.5 x 71.5 mm (3.4 x 2.8 inches)
Valves/Cylinder2
Fuel SystemInjection
Fuel ControlOverhead Valves (OHV)
IgnitionCD with electronic advance
LubricationDry sump
CoolingLiquid
Transmission
Gearbox5-speed
Final DriveShaft drive (cardan) (final drive)
Driveline2WD
Chassis
Front SuspensionIndependent double-wishbone
Front Travel170 mm (6.7 inches)
Rear SuspensionSwingarm with single shock
Rear Travel170 mm (6.7 inches)
Wheelbase1269 mm (50.0 inches)
Ground Clearance181 mm (7.1 inches)
Wheels & Brakes
Front Tyre24/8-12
Rear Tyre24/10-11
Front BrakesDouble disc
Front Brake Ø190 mm (7.5 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Ø220 mm (8.7 inches)
Dimensions & Weight
Weight incl.264.0 kg (582.0 pounds)
Seat Height855 mm (33.7 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.
