Positioned in Honda's scooter motorcycle lineup, the 2021 Honda PCX125 relies on a 125 cc (7.6 cu in) liquid-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 12.3 HP (9 kW) at 8,750 rpm while maximum torque reaches 11.8 Nm (8.7 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 98.4 HP per liter and a 2,250 rpm working window between peak torque (6,500 rpm) and peak power (8,750 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 PCX125 measures 130 kg (287 lbs) wet (curb), translating to a power-to-weight ratio of 0.09 HP/kg (10.57 kg per horsepower). Rider ergonomics and chassis geometry center around a 764 mm (30.1 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,315 mm (51.8 in) wheelbase engineered for quick, flickable steering geometry. The 8-liter (2.1 US gal) fuel tank paired with a rated consumption of 2.1 L/100 km provides an estimated theoretical range of roughly 381 km (237 miles) between fill-ups.
Within MotoLibrary's Honda archive, this model family spans 4 indexed model years from 2013 to 2023, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
98.4 HP/L
Power-to-Weight
0.09 HP/kg (10.57 kg/HP)
Power Band Window
6,500–8,750 rpm
Theoretical Range
~381 km (237 mi)
Engine
Displacement125.0 ccm (7.63 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power12.3 HP (9.0 kW)) @ 8750 RPM
Torque11.8 Nm (1.2 kgf-m or 8.7 ft.lbs) @ 6500 RPM
Compression10.5:1
Bore x Stroke53.5 x 55.5 mm (2.1 x 2.2 inches)
Valves/Cylinder2
Fuel SystemInjection. PGM-FI with automatic enrichment
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.
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.
