These are the known mechanical and performance specifications for your 2017 Sachs Speedjet RS.
Basic Specs

Year2017
MakeSachs
ModelSachs Speedjet RS
TypeScooter
Cost Euro 1699. Prices depend on country, taxes, accessories, etc.
Engine
Displacement50.00 ccm (3.05 cubic inches)
Type
DetailsSingle cylinder, two-stroke
Max RPM
Compression
Bore/Stroke
Valves/Cylinder
FuelingCarburettor
Ignition
Exhaust
Lubrication
CoolingLiquid
Performance
Horespower3.08 HP (2.2 kW)
Torque
Top Speed45.0 km/h (28.0 mph)
Chassis
Frame Type
Rake
Trail
Front SuspensionTelescopic fork
Front Travel
Rear SuspensionMonoshock
Rear Travel
Seat
Seat Height800 mm (31.5 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height
Total Length
Total Width
Ground Clearance
Wheelbase
Dry Weight88.0 kg (194.0 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre120/70-12
Rear Tire/Tyre130/70-12
Front BrakesSingle disc
Front Brake Diameter
Rear BrakesSingle disc
Rear Brake Diameter
WheelsAluminium rims

Comments
Sachs is also called SFM-bikes and SAXXX. Sold in Germany.