User Rating: /5 · No user ratings yet✓ Your rating was saved
MotoLibrary Score
36/100Commuter
Power/Weight
0.07 hp/kg
Top Speed
100 km/h
Engine
124 ccm
Technical Overview
2020 Junak M 12 125 Technical Analysis & Specification Breakdown
Built around Junak's custom - cruiser motorcycle platform, the 2020 Junak M 12 125 pairs a 124 cc (7.6 cu in) liquid-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 9.9 HP (7.2 kW) at 9,500 rpm, transferring power to the rear wheel through shaft drive (cardan) final drive. With a specific output of 79.8 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the M 12 125 measures 142 kg (313 lbs) dry, translating to a power-to-weight ratio of 0.07 HP/kg (14.34 kg per horsepower). Rider ergonomics and chassis geometry center around a 730 mm (28.7 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops. The 13.5-liter (3.6 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 100 km/h (62 mph).
Specific Output
79.8 HP/L
Power-to-Weight
0.07 HP/kg (14.34 kg/HP)
Standover Height
730 mm (28.7 in)
Engine
Displacement124.0 ccm (7.57 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power9.9 HP (7.2 kW)) @ 9500 RPM
Fuel SystemInjection
Fuel ControlOverhead Cams (OHC)
CoolingLiquid
Transmission
Final DriveShaft drive (cardan) (final drive)
Performance
Top Speed100.0 km/h (62.1 mph)
Wheels & Brakes
Front Tyre90/90-18
Rear Tyre130/90-15
Front BrakesSingle disc
Rear BrakesSingle disc
Dimensions & Weight
Dry Weight142.0 kg (313.1 pounds)
Power/Weight0.0699 HP/kg
Seat Height730 mm (28.7 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.
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.
