Positioned in ShineTime's allround motorcycle lineup, the 2012 ShineTime ST50 SkyMax-Pro features a 49 cc (3 cu in) air-cooled single cylinder, four-stroke configuration. In factory specification, peak output is rated at 2.6 HP (1.9 kW) at 7,500 rpm, transferring power to the rear wheel through a 4-speed gearbox and chain final drive. Internal engine geometry specifies a bore and stroke of 39.0 x 39.0 mm (1.5 x 1.5 inches) with a 9.0:1 compression ratio.
On the scales, the ST50 SkyMax-Pro measures 78 kg (172 lbs) dry. Rider ergonomics and chassis geometry center around a 740 mm (29.1 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,075 mm (42.3 in) wheelbase engineered for quick, flickable steering geometry. The 5.5-liter (1.5 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
740 mm (29.1 in)
Engine
Displacement49.0 ccm (2.99 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power2.6 HP (1.9 kW)) @ 7500 RPM
Compression9.0:1
Bore x Stroke39.0 x 39.0 mm (1.5 x 1.5 inches)
Fuel SystemCarburettor
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionCDI
LubricationPressure and splash lubrication
CoolingAir
Transmission
Gearbox4-speed
Final DriveChain (final drive)
ClutchWet, multiple disc
Performance
Top Speed45.0 km/h (28.0 mph)
Chassis
Frame TypeSteel, Single-tube
Front SuspensionSpring and hydraulic fork
Rear SuspensionSpring and hydraulic shock
Wheelbase1075 mm (42.3 inches)
Ground Clearance200 mm (7.9 inches)
Wheels & Brakes
Front Tyre120/70-12
Rear Tyre120/70-12
Front BrakesSingle disc
Front Brake Ø155 mm (6.1 inches)
Rear BrakesExpanding brake (drum brake)
Dimensions & Weight
Dry Weight78.0 kg (172.0 pounds)
Power/Weight0.0327 HP/kg
Seat Height740 mm (29.1 inches) If adjustable, lowest setting.
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.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
