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← Junak
Naked bike · 2020

905

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MotoLibrary Score
31 /100 Commuter
Power/Weight
0.03 hp/kg
Top Speed
45 km/h
Engine
49 ccm

2020 Junak 905 Technical Analysis & Specification Breakdown

Positioned in Junak's naked motorcycle lineup, the 2020 Junak 905 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 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
Displacement 49.0 ccm (2.99 cubic inches)
Engine Type Single cylinder, four-stroke
Power 3.8 HP (2.8 kW))
Fuel System Carburettor
Transmission
Final Drive Shaft drive (cardan) (final drive)
Performance
Top Speed 45.0 km/h (28.0 mph)
Wheels & Brakes
Front Tyre 90/90-17
Rear Tyre 110/80-17
Front Brakes Single disc
Rear Brakes Expanding brake (drum brake)
Dimensions & Weight
Dry Weight 121.0 kg (266.8 pounds)
Power/Weight 0.0314 HP/kg
Seat Height 770 mm (30.3 inches) If adjustable, lowest setting.
Overall Height 1155 mm (45.5 inches)
Overall Length 2055 mm (80.9 inches)
Overall Width 760 mm (29.9 inches)
Fuel Capacity 12.50 litres (3.30 US gallons)
Other
Starter Electric & kick
Color Options Black/Green, Black/Blue, Black/Red
Notes

Polish Brand

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Buying Checklist

Before You Compare This Bike

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.
Rider Profile

Who Is This Bike For?

🟢
Beginner
A2 license compatible, manageable power.
🏍️
Best For
City & Weekend Rides
📏
Seat Height
77 cm / 30.3 in
⚖️
Handling
Very lightweight — easy to handle
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