Engineered by KSR for the scooter motorcycle segment, the 2018 KSR Demonio 50 pairs a 50 cc (3.1 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 3.1 HP (2.2 kW) at 6,500 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 62 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 Demonio 50 measures 95 kg (209 lbs) dry. Rider ergonomics and chassis geometry center around a 1,280 mm (50.4 in) wheelbase engineered for quick, flickable steering geometry. The 5-liter (1.3 US gal) fuel tank paired with a rated consumption of 2 L/100 km provides an estimated theoretical range of roughly 250 km (155 miles) between fill-ups.
Within MotoLibrary's KSR archive, this model family spans 3 indexed model years from 2018 to 2021, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
62 HP/L
Theoretical Range
~250 km (155 mi)
Engine
Displacement50.0 ccm (3.05 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power3.1 HP (2.2 kW)) @ 6500 RPM
Fuel SystemCarburettor
CoolingAir
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
DrivelineCVT
Performance
Fuel Consumption2.00 litres/100 km (50.0 km/l or 117.61 mpg)
Greenhouse Gases46.4 CO2 g/km. (CO2 - Carbon dioxide emission)
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.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
