Engineered by Honda for the scooter motorcycle segment, the 2023 Honda SH125i relies on a 124.9 cc (7.6 cu in) liquid-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 12.9 HP (9.4 kW) at 8,250 rpm while maximum torque reaches 12 Nm (8.9 lb-ft) at 6,500 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 103.3 HP per liter and a 1,750 rpm working window between peak torque (6,500 rpm) and peak power (8,250 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the SH125i measures 133.9 kg (295 lbs) wet (curb), translating to a power-to-weight ratio of 0.1 HP/kg (10.38 kg per horsepower). Rider ergonomics and chassis geometry center around a 799 mm (31.5 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,350 mm (53.1 in) wheelbase engineered for quick, flickable steering geometry. The 7-liter (1.8 US gal) fuel tank paired with a rated consumption of 2.19 L/100 km provides an estimated theoretical range of roughly 320 km (199 miles) between fill-ups, while factory top speed is listed at 114 km/h (71 mph).
Within MotoLibrary's Honda archive, this model family spans 14 indexed model years from 2007 to 2023, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
103.3 HP/L
Power-to-Weight
0.1 HP/kg (10.38 kg/HP)
Power Band Window
6,500–8,250 rpm
Theoretical Range
~320 km (199 mi)
Engine
Displacement124.9 ccm (7.62 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsHonda eSP+ engine with Selectable Torque Control (HSTC) and Idling Stop
Power12.9 HP (9.4 kW)) @ 8250 RPM
Torque12.0 Nm (1.2 kgf-m or 8.9 ft.lbs) @ 6500 RPM
Compression11.5:1
Bore x Stroke53.5 x 55.5 mm (2.1 x 2.2 inches)
Valves/Cylinder4
Fuel SystemInjection. PGM-FI
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionDigital transistorised
CoolingLiquid
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
ClutchAutomatic, centrifugal
DrivelineV-Belt
Performance
Top Speed114.3 km/h (71.0 mph)
Fuel Consumption2.19 litres/100 km (45.7 km/l or 107.41 mpg)
Greenhouse Gases50.8 CO2 g/km. (CO2 - Carbon dioxide emission)
Emission DetailsEuro 5
Chassis
Frame TypeTubular steel underbone
Rake26.0°
Trail85 mm (3.4 inches)
Front Suspension33mm telescopic fork
Front Travel89 mm (3.5 inches)
Rear SuspensionDual-damper unit swingarm
Rear Travel83 mm (3.3 inches)
Wheelbase1350 mm (53.1 inches)
Ground Clearance145 mm (5.7 inches)
Wheels & Brakes
Front Tyre100/80-16
Rear Tyre120/80-16
Front BrakesSingle disc. ABS. Two-piston calipers.
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.
