IZH Planeta 4 - Specifications & Review

Planeta 4

Article Complete Info

Articleid409969
CategoryClassic
MakeIZH
ModelPlaneta 4
Year1984

Chassis, Suspension, Brakes & Wheels

FrontbrakesExpanding brake (drum brake)
Fronttyre- 3.50-18
RearbrakesExpanding brake (drum brake)

Engine & Transmission

Borexstroke72.0 x 85.0 mm (2.8 x 3.3 inches)
Compression8.5:1
CoolingsystemAir
Displacement350.00 ccm (21.36 cubic inches)
EnginedetailsSingle cylinder, two-stroke
ExhaustsystemDouble stainless steel pipes
Fuelconsumption5.50 litres/100 km (18.2 km/l or 42.77 mpg)
FuelsystemCarburettor
Gearbox4-speed
Greenhousegases127.6 CO2 g/km. (CO2 - Carbon dioxide emission)
Power20.00 HP (14.6 kW)) @ 4800 RPM
Topspeed120.0 km/h (74.6 mph)
Torque27.50 Nm (2.8 kgf-m or 20.3 ft.lbs) @ 4700 RPM
TransmissiontypefinaldriveChain

Other Specifications

ColoroptionsBlue
CommentsGood at repairing
Modificationscomparedtopreviousmodel12V instaliation
StarterKick

Physical Measures & Capacities

Dryweight155.0 kg (341.7 pounds)
Fuelcapacity17.00 litres (4.49 gallons)
Groundclearance135 mm (5.3 inches)
Overallheight1,170 mm (46.1 inches)
Overalllength2,470 mm (97.2 inches)
Overallwidth810 mm (31.9 inches)
Powerweightratio0.1290 HP/kg
Reservefuelcapacity0.75 litres (0.20 gallons)

About IZH

Country of Origin: Russia
Founder: Izhevsk Mechanical Plant (Izhmash)
Best Known For: Sturdy Soviet-era roadsters (Planeta, Jupiter) built in huge volumes

Company History

From the 1920s through the late Soviet period, IZH produced simple, fixable motorcycles that mobilized millions across the USSR. Singles (Planeta) and twins (Jupiter) emphasized torque, ease of repair, and tolerance for poor fuel and rough roads. Owners learned to keep points clean, cables smooth, and chains oiled, turning basic garages into lifelines. Sidecars were common, turning IZH bikes into family transport and work vehicles. While fit and finish lagged Western machines, parts interchangeability and a nationwide service culture kept fleets alive for decades. After the 1990s economic transition, production shrank and diversified, but the brand’s imprint endures in regional clubs and the secondhand market. Historically, IZH symbolizes transport as necessity rather than hobby—metal that must start in winter and carry loads without complaint. For collectors, a tidy Jupiter or Planeta is nostalgia and mechanics class in one: you ride the history of a planned economy’s answer to distance and weather.

Other Years

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