Balkan MK50 2JU25 - Specifications & Review

MK50 2JU25

Article Complete Info

Articleid374600
CategoryTouring
MakeBalkan
ModelMK50 2JU25
Year1970

Chassis, Suspension, Brakes & Wheels

FrontbrakesExpanding brake (drum brake)
RearbrakesExpanding brake (drum brake)

Engine & Transmission

Borexstroke40.0 x 39.0 mm (1.6 x 1.5 inches)
Compression9.0:1
CoolingsystemAir
Displacement49.00 ccm (2.99 cubic inches)
EnginedetailsSingle cylinder, two-stroke
Fuelconsumption2.20 litres/100 km (45.5 km/l or 106.92 mpg)
FuelsystemCarburettor
Gearbox3-speed
Greenhousegases51.0 CO2 g/km. (CO2 - Carbon dioxide emission)
Power3.30 HP (2.4 kW)) @ 6500 RPM
Topspeed65.0 km/h (40.4 mph)
TransmissiontypefinaldriveChain

Physical Measures & Capacities

Dryweight61.0 kg (134.5 pounds)
Overallheight1,015 mm (40.0 inches)
Overalllength1,860 mm (73.2 inches)
Overallwidth655 mm (25.8 inches)
Powerweightratio0.0541 HP/kg
Weightincloilgasetc70.0 kg (154.3 pounds)

About Balkan

Country of Origin: Bulgaria
Founder: State-associated industrial works in Lovech
Best Known For: Mid-20th-century small-displacement utility motorcycles

Company History

Balkan motorcycles were produced in Lovech, Bulgaria, during the mid-20th century as part of state-directed industrialization. These simple, rugged machines provided essential transport in an era when private cars were rare and roads were challenging. Air-cooled singles, straightforward gearboxes, and minimal electrics defined the breed, emphasizing easy maintenance with basic tools. For many Bulgarians, a Balkan meant access—to work, to markets, to family in distant villages. The brand’s identity, like many behind the Iron Curtain, was less about marketing and more about reliability under constraint: limited materials, evolving manufacturing capability, and the need for field reparability. As the political landscape changed and international brands entered the market, production declined, but the bikes remained in service for years—patched, repainted, and kept alive by ingenuity. Historically, Balkan stands as a reminder that motorcycling’s social value is not confined to leisure or sport; in many places it is the backbone of daily life. Restored examples now appear at regional shows as artifacts of resilience, bearing the marks of long work and the pride of owners who relied on them for decades.

Other Years

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