Positioned in Suzuki's sport motorcycle lineup, the 1986 Suzuki RG125 Gamma relies on a 125 cc (7.6 cu in) liquid-cooled single cylinder, two-stroke powerplant. In factory specification, peak output is rated at 25 HP (18.2 kW) at 9,000 rpm while maximum torque reaches 19.1 Nm (14.1 lb-ft) at 8,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 200 HP per liter and a 500 rpm working window between peak torque (8,500 rpm) and peak power (9,000 rpm), the engine character is placing it firmly in high-revving supersport territory where top-end breathing dominates.
On the scales, the RG125 Gamma measures 94 kg (207 lbs) dry, translating to a power-to-weight ratio of 0.27 HP/kg (3.76 kg per horsepower). Rider ergonomics and chassis geometry center around a 720 mm (28.3 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,310 mm (51.6 in) wheelbase engineered for quick, flickable steering geometry. The 13-liter (3.4 US gal) fuel tank paired with a rated consumption of 5.22 L/100 km provides an estimated theoretical range of roughly 249 km (155 miles) between fill-ups, while factory top speed is listed at 161 km/h (100 mph).
Specific Output
200 HP/L
Power-to-Weight
0.27 HP/kg (3.76 kg/HP)
Power Band Window
8,500–9,000 rpm
Theoretical Range
~249 km (155 mi)
Engine
Displacement125.0 ccm (7.63 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Power25.0 HP (18.2 kW)) @ 9000 RPM
Torque19.1 Nm (1.9 kgf-m or 14.1 ft.lbs) @ 8500 RPM
Fuel SystemCarburettor
CoolingLiquid
Max RPM12000
Transmission
Gearbox6-speed
Final DriveChain (final drive)
Clutchmultiple plates in oil bath
Performance
Top Speed160.9 km/h (100.0 mph)
Fuel Consumption5.22 litres/100 km (19.2 km/l or 45.06 mpg)
Greenhouse Gases121.1 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Wheelbase1310 mm (51.6 inches)
Wheels & Brakes
Front BrakesSingle disc
Rear BrakesExpanding brake (drum brake)
Dimensions & Weight
Dry Weight94.0 kg (207.2 pounds)
Power/Weight0.2660 HP/kg
Seat Height720 mm (28.3 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.
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.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
