1982 Jawa 420 Prototype technical specifications

Technical specifications

Model: 420 Prototype
Years: 1982
Engine: Four stroke, single cylinder, SOHC, 4 valves per cylinder.
Capacity: 420 cc / 25.6 cu in
Bore x Stroke: 85 x 73 mm
Cooling System: Liquid cooled
Transmission: 5 Speed
Final Drive: Chain
Front Suspension: Hydraulic telescopic forks
Front Wheel Travel: 154 mm / 6.1"
Rear Suspension: Single shock
Rear Wheel travel: 150 mm / 5.9"
Front Brakes: Single disc
Rear Brakes: Expanding drum
Dry Weight: 155 kg / 342 bls
Fuel Capacity: 20 L / 5.2 US gal

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