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Naked bike · 2020

Sirius 250

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MotoLibrary Score
42 /100 Commuter
Power/Weight
0.13 hp/kg
Top Speed
145 km/h
Engine
250 ccm

2020 Motomel Sirius 250 Technical Analysis & Specification Breakdown

Built around Motomel's naked motorcycle platform, the 2020 Motomel Sirius 250 relies on a 250 cc (15.3 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 16.8 HP (12.2 kW) at 8,000 rpm. With a specific output of 67.2 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 Sirius 250 measures 130 kg (287 lbs) dry, translating to a power-to-weight ratio of 0.13 HP/kg (7.74 kg per horsepower). 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 16-liter (4.2 US gal) fuel tank paired with a rated consumption of 2.9 L/100 km provides an estimated theoretical range of roughly 552 km (343 miles) between fill-ups, while factory top speed is listed at 145 km/h (90 mph).

Specific Output
67.2 HP/L
Power-to-Weight
0.13 HP/kg (7.74 kg/HP)
Theoretical Range
~552 km (343 mi)
Engine
Displacement 250.0 ccm (15.26 cubic inches)
Engine Type Single cylinder, four-stroke
Power 16.8 HP (12.2 kW)) @ 8000 RPM
Bore x Stroke 65.5 x 66.6 mm (2.6 x 2.6 inches)
Fuel System Injection
Cooling Air
Performance
Top Speed 145.0 km/h (90.1 mph)
Fuel Consumption 2.90 litres/100 km (34.5 km/l or 81.11 mpg)
Greenhouse Gases 67.3 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Front Suspension Inverted Telescopic
Rear Suspension Mono shocks
Wheels & Brakes
Front Tyre 100/80-17
Rear Tyre 140/60-17
Front Brakes Single disc
Rear Brakes Single disc
Dimensions & Weight
Dry Weight 130.0 kg (286.6 pounds)
Power/Weight 0.1289 HP/kg
Seat Height 770 mm (30.3 inches) If adjustable, lowest setting.
Overall Height 1045 mm (41.1 inches)
Overall Length 1970 mm (77.6 inches)
Fuel Capacity 16.00 litres (4.23 US gallons)
Other
Starter Electric & kick
Color Options Black, Red/Black, White/Black, Blue/Black
More from Motomel
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.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
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
Manageable weight for most riders
Estimate

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* Estimates only. Actual costs vary by country, riding habits, insurance provider and maintenance schedule.

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