Engineered by adly for the scooter motorcycle segment, the 2009 adly thunder 50 features a 49.3 cc (3 cu in) air-cooled single cylinder, two-stroke configuration. In factory specification, peak output is rated at 3.7 HP (2.7 kW) at 5,500 rpm while maximum torque reaches 3 Nm (2.2 lb-ft) at 5,500 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. Internal engine geometry specifies a bore and stroke of 40.0 x 39.2 mm (1.6 x 1.5 inches) with a 7.2:1 compression ratio.
On the scales, the thunder 50 measures 77 kg (170 lbs) dry. Rider ergonomics and chassis geometry center around a 1,250 mm (49.2 in) wheelbase engineered for quick, flickable steering geometry.
Engine
Displacement49.3 ccm (3.01 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Power3.7 HP (2.7 kW)) @ 5500 RPM
Torque3.0 Nm (0.3 kgf-m or 2.2 ft.lbs) @ 5500 RPM
Compression7.2:1
Bore x Stroke40.0 x 39.2 mm (1.6 x 1.5 inches)
Fuel SystemCarburettor
IgnitionCDI
CoolingAir
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
Chassis
Front SuspensionUp side Down Grease Shock Absorber
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.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
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.
