Positioned in Keeway's sport motorcycle lineup, the 2017 Keeway RK 125 utilizes a 124.1 cc (7.6 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 10.1 HP (7.3 kW) at 8,250 rpm while maximum torque reaches 9.3 Nm (6.9 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 81.4 HP per liter and a 750 rpm working window between peak torque (7,500 rpm) and peak power (8,250 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 RK 125 measures 116 kg (256 lbs) dry, translating to a power-to-weight ratio of 0.09 HP/kg (11.49 kg per horsepower). Rider ergonomics and chassis geometry center around a 785 mm (30.9 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,320 mm (52 in) wheelbase engineered for quick, flickable steering geometry. The 12.3-liter (3.2 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Keeway archive, this model family spans 2 indexed model years from 2016 to 2017, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
81.4 HP/L
Power-to-Weight
0.09 HP/kg (11.49 kg/HP)
Power Band Window
7,500–8,250 rpm
Standover Height
785 mm (30.9 in)
Engine
Displacement124.1 ccm (7.57 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power10.1 HP (7.3 kW)) @ 8250 RPM
Torque9.3 Nm (0.9 kgf-m or 6.9 ft.lbs) @ 7500 RPM
Compression9.0:1
Bore x Stroke56.5 x 49.5 mm (2.2 x 1.9 inches)
Valves/Cylinder2
Fuel SystemCarburettor
Fuel ControlOverhead Valves (OHV)
IgnitionC.D.I
LubricationWet sump
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchWet, multiple-plate
Chassis
Frame TypeStraddle type
Front SuspensionTelescopic forks
Front Travel128 mm (5.0 inches)
Rear SuspensionTelescopic coil spring oil damped
Rear Travel55 mm (2.2 inches)
Wheelbase1320 mm (52.0 inches)
Ground Clearance150 mm (5.9 inches)
Wheels & Brakes
Front Tyre2.75-18
Rear Tyre3.25-18
Front BrakesSingle disc
Front Brake Ø220 mm (8.7 inches)
Rear BrakesSingle disc
Rear Brake Ø190 mm (7.5 inches)
WheelsBlack, 5-spoke rims
Dimensions & Weight
Dry Weight116.0 kg (255.7 pounds)
Power/Weight0.0867 HP/kg
Seat Height785 mm (30.9 inches) If adjustable, lowest setting.
Overall Height1050 mm (41.3 inches)
Overall Length1980 mm (78.0 inches)
Overall Width770 mm (30.3 inches)
Fuel Capacity12.30 litres (3.25 US gallons)
Other
StarterElectric & kick
Color OptionsBlack, blue, grey
InstrumentsAnalog/digital
Notes
Keeway is the American and European brand name of Qianjiang, China.
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.
