Built around Honda's scooter motorcycle platform, the 2018 Honda PCX 125 utilizes a 125 cc (7.6 cu in) liquid-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 11.5 HP (8.4 kW) at 8,500 rpm while maximum torque reaches 12 Nm (8.9 lb-ft) at 5,000 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 92 HP per liter and a 3,500 rpm working window between peak torque (5,000 rpm) and peak power (8,500 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 PCX 125 measures 130 kg (287 lbs) wet (curb), translating to a power-to-weight ratio of 0.09 HP/kg (11.3 kg per horsepower). Rider ergonomics and chassis geometry center around a 760 mm (29.9 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 1.76 L/100 km provides an estimated theoretical range of roughly 455 km (283 miles) between fill-ups.
Within MotoLibrary's Honda archive, this model family spans 5 indexed model years from 2012 to 2019, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
92 HP/L
Power-to-Weight
0.09 HP/kg (11.3 kg/HP)
Power Band Window
5,000–8,500 rpm
Theoretical Range
~455 km (283 mi)
Engine
Displacement125.0 ccm (7.63 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power11.5 HP (8.4 kW)) @ 8500 RPM
Torque12.0 Nm (1.2 kgf-m or 8.9 ft.lbs) @ 5000 RPM
Compression10.6:1
Bore x Stroke52.4 x 57.9 mm (2.1 x 2.3 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.
