At the heart of the 2022 Sinnis GPX 125 sport motorcycle, Sinnis pairs a 125 cc (7.6 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 12.7 HP (9.3 kW) at 9,500 rpm while maximum torque reaches 10.7 Nm (7.9 lb-ft) at 7,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 101.6 HP per liter and a 2,000 rpm working window between peak torque (7,500 rpm) and peak power (9,500 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 GPX 125 measures 158 kg (348 lbs) dry, translating to a power-to-weight ratio of 0.08 HP/kg (12.44 kg per horsepower). Rider ergonomics and chassis geometry center around a 816 mm (32.1 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,350 mm (53.1 in) wheelbase engineered for quick, flickable steering geometry. The 12-liter (3.2 US gal) fuel tank paired with a rated consumption of 3.01 L/100 km provides an estimated theoretical range of roughly 399 km (248 miles) between fill-ups.
Specific Output
101.6 HP/L
Power-to-Weight
0.08 HP/kg (12.44 kg/HP)
Power Band Window
7,500–9,500 rpm
Theoretical Range
~399 km (248 mi)
Engine
Displacement125.0 ccm (7.63 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power12.7 HP (9.3 kW)) @ 9500 RPM
Torque10.7 Nm (1.1 kgf-m or 7.9 ft.lbs) @ 7500 RPM
Bore x Stroke58.0 x 47.0 mm (2.3 x 1.9 inches)
Valves/Cylinder4
Fuel SystemInjection. Delphi
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionECU
LubricationWet sump
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchWet, Multi-Disc, Coil Spring
Performance
Fuel Consumption3.01 litres/100 km (33.2 km/l or 78.15 mpg)
Greenhouse Gases69.8 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Frame TypeTubular Steel
Rake25.0°
Front SuspensionUpside-down Telescopic Fork, Dia.48mm
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.
