These are the known mechanical and performance specifications for your 2012 Keeway RKV 125.
Basic Specs

Engine
Displacement124.50 ccm (7.60 cubic inches)
Type
DetailsSingle cylinder, four-stroke
Max RPM
Compression10.6:1
Bore/Stroke57.0 x 48.8 mm (2.2 x 1.9 inches)
Valves/Cylinder2
Fueling
Ignition
Exhaust
Lubrication
Cooling
Performance
Horespower11.00 HP (8.0 kW)
Torque9.20 Nm (0.9 kgf-m or 6.8 ft.lbs)
Top Speed95.0 km/h (59.0 mph)
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity17.00 litres (4.49 gallons)
Emissions
Chassis
Frame TypeSteel
Rake
Trail
Front SuspensionTelescopic fork
Front Travel
Rear SuspensionDual shocks
Rear Travel
Seat
Seat Height
Alt. Seat Height
Total Height1,140 mm (44.9 inches)
Total Length2,060 mm (81.1 inches)
Total Width760 mm (29.9 inches)
Ground Clearance190 mm (7.5 inches)
Wheelbase1,335 mm (52.6 inches)
Dry Weight120.0 kg (264.6 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre90/90-16
Rear Tire/Tyre110/80-16
Front BrakesSingle disc
Front Brake Diameter
Rear BrakesExpanding brake (drum brake)
Rear Brake Diameter
WheelsBlack rims with red stripe
Comments
Keeway is a Chinese brand.