Sport · 2020
904
MotoLibrary Score
31 /100 Commuter
Power/Weight
0.03 hp/kg
Top Speed
45 km/h
Engine
49 ccm
Technical Overview
2020 Junak 904 Technical Analysis & Specification Breakdown
At the heart of the 2020 Junak 904 sport motorcycle, Junak 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).
On the scales, the 904 measures 117 kg (258 lbs) dry. The 15-liter (4 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 45 km/h (28 mph).
Engine
Displacement 49.0 ccm (2.99 cubic inches)
Engine Type Single cylinder, four-stroke
Power 3.8 HP (2.8 kW))
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 117.0 kg (257.9 pounds)
Power/Weight 0.0325 HP/kg
Overall Height 1090 mm (42.9 inches)
Overall Length 1965 mm (77.4 inches)
Overall Width 750 mm (29.5 inches)
Fuel Capacity 15.00 litres (3.96 US gallons)
Other
Starter Electric & kick
Color Options White/Red, White/Green, White/Blue, Black/Red, Black/Brown
Notes
Polish Brand
More from Junak
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.
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
Sport & Track
⚖️
Handling
Very lightweight — easy to handle
Estimate
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