Positioned in Honda's atv motorcycle lineup, the 2021 Honda TRX90X utilizes a 86 cc (5.3 cu in) air-cooled single cylinder, four-stroke layout. Internal engine geometry specifies a bore and stroke of 47.0 x 49.5 mm (1.9 x 1.9 inches).
On the scales, the TRX90X measures 118.8 kg (262 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 660 mm (26 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 983 mm (38.7 in) wheelbase engineered for quick, flickable steering geometry. The 6.43-liter (1.7 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Honda archive, this model family spans 13 indexed model years from 2009 to 2023, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
660 mm (26 in)
Engine
Displacement86.0 ccm (5.25 cubic inches)
Engine TypeSingle cylinder, four-stroke
Bore x Stroke47.0 x 49.5 mm (1.9 x 1.9 inches)
Fuel SystemCarburettor. 15mm piston-valve
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionCDI
CoolingAir
Transmission
Gearbox4-speed
Final DriveChain (final drive)
ClutchAutomatic
DrivelineO-ring-sealed chain. 2WD.
Chassis
Front SuspensionIndependent suspension
Front Travel66 mm (2.6 inches)
Rear SuspensionSwingarm with single shock
Rear Travel66 mm (2.6 inches)
Wheelbase983 mm (38.7 inches)
Ground Clearance99 mm (3.9 inches)
Wheels & Brakes
Front Tyre20/7-8
Rear Tyre19/8-8
Front BrakesExpanding brake (drum brake). Dual sealed drum
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.
