These are the known mechanical and performance specifications for your 1963 Balkan C2 - 250.
Basic Specs

Engine
Displacement247.30 ccm (15.09 cubic inches)
Type
DetailsSingle cylinder, two-stroke
Max RPM
Compression6.5:1
Bore/Stroke64.0 x 70.0 mm (2.5 x 2.8 inches)
Valves/Cylinder
FuelingCarburettor. 29/24 H
Ignition
ExhaustDouble pipes
Lubrication
CoolingAir
Performance
Horespower12.50 HP (9.1 kW)
Torque
Top Speed110.0 km/h (68.4 mph)
Fuel Economy & Polution
Fuel Consumption3.40 litres/100 km (29.4 km/l or 69.18 mpg)
Fuel Capacity
Emissions78.9 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Frame Type
Rake
Trail
Front Suspension
Front Travel
Rear Suspension
Rear Travel
Seat
Seat Height810 mm (31.9 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height1,036 mm (40.8 inches)
Total Length2,130 mm (83.9 inches)
Total Width660 mm (26.0 inches)
Ground Clearance
Wheelbase
Dry Weight150.0 kg (330.7 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre
Rear Tire/Tyre
Front BrakesExpanding brake (drum brake)
Front Brake Diameter
Rear BrakesExpanding brake (drum brake)
Rear Brake Diameter
Wheels
Comments