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MotoLibrary Score
31/100Commuter
Power/Weight
0.03 hp/kg
Top Speed
45 km/h
Engine
49 ccm
Technical Overview
2020 Junak 905 F Technical Analysis & Specification Breakdown
Built around Junak's naked motorcycle platform, the 2020 Junak 905 F features a 49 cc (3 cu in) single cylinder, four-stroke configuration. In factory specification, peak output is rated at 3.8 HP (2.8 kW), transferring power to the rear wheel through shaft drive (cardan) final drive.
On the scales, the 905 F measures 121 kg (267 lbs) dry. Rider ergonomics and chassis geometry center around a 770 mm (30.3 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance. The 12.5-liter (3.3 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 45 km/h (28 mph).
Standover Height
770 mm (30.3 in)
Engine
Displacement49.0 ccm (2.99 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power3.8 HP (2.8 kW))
Fuel SystemCarburettor
Transmission
Final DriveShaft drive (cardan) (final drive)
Performance
Top Speed45.0 km/h (28.0 mph)
Wheels & Brakes
Front Tyre90/90-17
Rear Tyre110/80-17
Front BrakesSingle disc
Rear BrakesExpanding brake (drum brake)
Dimensions & Weight
Dry Weight121.0 kg (266.8 pounds)
Power/Weight0.0314 HP/kg
Seat Height770 mm (30.3 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.
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.
