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← Jawa
Classic · 1977

50 - 20 - Yezdi - Colt

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MotoLibrary Score
31 /100 Commuter
Power
4 HP
Engine
60 ccm

1977 Jawa 50 - 20 - Yezdi - Colt Technical Analysis & Specification Breakdown

Positioned in Jawa's classic motorcycle lineup, the 1977 Jawa 50 - 20 - Yezdi - Colt features a 60 cc (3.7 cu in) air-cooled single cylinder, two-stroke configuration. In factory specification, peak output is rated at 3.6 HP (2.6 kW) at 6,000 rpm, transferring power to the rear wheel through a 3-speed gearbox and chain final drive. With a specific output of 60 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

Specific Output
60 HP/L
Engine
Displacement 60.0 ccm (3.66 cubic inches)
Engine Type Single cylinder, two-stroke
Engine Details Single cylinder, two-stroke
Power 3.6 HP (2.6 kW)) @ 6000 RPM
Compression 8.2:1
Ignition Kick start
Cooling Air
Transmission
Gearbox 3-speed
Final Drive Chain (final drive)
Clutch Double plate, cork lined with 5 springs, running in oil bath.
Chassis
Frame Type Profile Welded Tubes
Front Suspension Telescopic
Front Travel 90 mm (3.5 inches)
Rear Travel 55 mm (2.2 inches)
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Power
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Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
Rider Profile

Who Is This Bike For?

🟢
Beginner
A2 license compatible, manageable power.
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