Positioned in Aeon's scooter motorcycle lineup, the 2023 Aeon STR pairs a 278.3 cc (17 cu in) liquid-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 21.5 HP (15.7 kW) at 7,500 rpm while maximum torque reaches 23.5 Nm (17.3 lb-ft) at 5,750 rpm, transferring power to the rear wheel through a automatic gearbox and chain final drive. With a specific output of 77.3 HP per liter and a 1,750 rpm working window between peak torque (5,750 rpm) and peak power (7,500 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 STR measures 158 kg (348 lbs) dry, translating to a power-to-weight ratio of 0.14 HP/kg (7.35 kg per horsepower). Rider ergonomics and chassis geometry center around a 802 mm (31.6 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,430 mm (56.3 in) wheelbase engineered for balanced agility and highway composure. The 10-liter (2.6 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
77.3 HP/L
Power-to-Weight
0.14 HP/kg (7.35 kg/HP)
Power Band Window
5,750–7,500 rpm
Standover Height
802 mm (31.6 in)
Engine
Displacement278.3 ccm (16.98 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power21.5 HP (15.7 kW)) @ 7500 RPM
Torque23.5 Nm (2.4 kgf-m or 17.3 ft.lbs) @ 5750 RPM
Compression11.0:1
Bore x Stroke75.0 x 63.0 mm (3.0 x 2.5 inches)
Fuel SystemInjection. EFI
LubricationWet sump, Oil pump.
CoolingLiquid
Transmission
GearboxAutomatic
Final DriveChain (final drive)
ClutchCentrifugal clutch
DrivelineCVT
Chassis
Frame TypeSteel tube
Front SuspensionTelescopic fork
Front Travel80 mm (3.1 inches)
Rear SuspensionDual-damper unit swing arm
Rear Travel95 mm (3.7 inches)
Wheelbase1430 mm (56.3 inches)
Ground Clearance121 mm (4.8 inches)
Wheels & Brakes
Front Tyre120/70-13
Rear Tyre130/70-13
Front BrakesSingle disc. ABS
Front Brake Ø266 mm (10.5 inches)
Rear BrakesSingle disc. ABS
Rear Brake Ø235 mm (9.3 inches)
Wheels6-spoke cast aluminium
Dimensions & Weight
Dry Weight158.0 kg (348.3 pounds)
Power/Weight0.1358 HP/kg
Seat Height802 mm (31.6 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.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
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.
