These are the known mechanical and performance specifications for your 2016 Lifan Royal 250.
Basic Specs

Engine
Displacement248.90 ccm (15.19 cubic inches)
Type
DetailsV2, four-stroke
Max RPM
Compression10.0:1
Bore/Stroke49.0 x 66.0 mm (1.9 x 2.6 inches)
Valves/Cylinder
FuelingCarburettor
IgnitionTCI (Transistor Controlled Ignition)
Exhaust
Lubrication
CoolingAir
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity13.63 litres (3.60 gallons)
Emissions
Chassis
Frame Type
Rake
Trail
Front SuspensionTelescopic type, Hydraulic drive
Front Travel
Rear SuspensionCoil spring-dampened
Rear Travel
Seat
Seat Height
Alt. Seat Height
Total Height1,140 mm (44.9 inches)
Total Length2,250 mm (88.6 inches)
Total Width851 mm (33.5 inches)
Ground Clearance150 mm (5.9 inches)
Wheelbase1,496 mm (58.9 inches)
Dry Weight
Wet Weight154.2 kg (340.0 pounds)
Wheels & Brakes
Front Tire/Tyre3.00-18
Rear Tire/Tyre5.00-15
Front BrakesSingle disc
Front Brake Diameter
Rear BrakesExpanding brake (drum brake)
Rear Brake Diameter
Wheels
Comments
Chinese made bike.