Engineered by PGO for the scooter motorcycle segment, the 2007 PGO T-REX 125 utilizes a 124.9 cc (7.6 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 9.5 HP (6.9 kW) at 7,500 rpm while maximum torque reaches 9.1 Nm (6.7 lb-ft) at 6,250 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 76.1 HP per liter and a 1,250 rpm working window between peak torque (6,250 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 T-REX 125 measures 102 kg (225 lbs) dry, translating to a power-to-weight ratio of 0.09 HP/kg (10.74 kg per horsepower). Rider ergonomics and chassis geometry center around a 1,284 mm (50.6 in) wheelbase engineered for quick, flickable steering geometry. The 6.7-liter (1.8 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's PGO archive, this model family spans 5 indexed model years from 2004 to 2011, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
76.1 HP/L
Power-to-Weight
0.09 HP/kg (10.74 kg/HP)
Power Band Window
6,250–7,500 rpm
Engine
Displacement124.9 ccm (7.62 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power9.5 HP (6.9 kW)) @ 7500 RPM
Torque9.1 Nm (0.9 kgf-m or 6.7 ft.lbs) @ 6250 RPM
Compression9.4:1
Bore x Stroke51.5 x 60.0 mm (2.0 x 2.4 inches)
IgnitionCDI
CoolingAir
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
ClutchDry style, centrifugal type
Chassis
Front SuspensionTelescopic (90mm extention)
Front Travel90 mm (3.5 inches)
Rear Suspension4-Bar Linkage, Uni-Absorber
Wheelbase1284 mm (50.6 inches)
Wheels & Brakes
Front Tyre120/70-12
Rear Tyre130/70-12
Front BrakesSingle disc. 190 mm Hydraulic Disk with Twin Piston Caliper
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.
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.
