Built around PGO's scooter motorcycle platform, the 2008 PGO G-MAX 150 EFI features a 150.1 cc (9.2 cu in) air-cooled single cylinder, four-stroke configuration. In factory specification, peak output is rated at 11.1 HP (8.1 kW) at 7,750 rpm while maximum torque reaches 11.4 Nm (8.4 lb-ft) at 6,000 rpm, transferring power to the rear wheel through a automatic gearbox. With a specific output of 74 HP per liter and a 1,750 rpm working window between peak torque (6,000 rpm) and peak power (7,750 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 G-MAX 150 EFI measures 130 kg (287 lbs) wet (curb), translating to a power-to-weight ratio of 0.09 HP/kg (11.71 kg per horsepower). Rider ergonomics and chassis geometry center around a 820 mm (32.3 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,365 mm (53.7 in) wheelbase engineered for quick, flickable steering geometry. The 7.5-liter (2 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's PGO archive, this model family spans 2 indexed model years from 2008 to 2016, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
74 HP/L
Power-to-Weight
0.09 HP/kg (11.71 kg/HP)
Power Band Window
6,000–7,750 rpm
Standover Height
820 mm (32.3 in)
Engine
Displacement150.1 ccm (9.16 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power11.1 HP (8.1 kW)) @ 7750 RPM
Torque11.4 Nm (1.2 kgf-m or 8.4 ft.lbs) @ 6000 RPM
Compression9.4:1
Bore x Stroke57.5 x 57.8 mm (2.3 x 2.3 inches)
Fuel SystemInjection. Electronic fuel injection
LubricationCompress and splash
CoolingAir
Transmission
GearboxAutomatic
Chassis
Wheelbase1365 mm (53.7 inches)
Wheels & Brakes
Front Tyre120/60-13
Rear Tyre130/60-13
Front BrakesSingle disc
Rear BrakesSingle disc
Dimensions & Weight
Weight incl.130.0 kg (286.6 pounds)
Seat Height820 mm (32.3 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.
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.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.