| MODEL | JAWA 640 TRAMP 1997 |
| Year | 1997 |
| Engine Type | Two stroke, parallel twin |
| Displacement / Capacity | 343.4 cc / 21.0 cu in |
| Bore X Stroke | 58 x 65 mm |
| Compression Ratio | 9.8:1 |
| Cooling System | Air cooled |
| Max Power | 17.2 kW / 23.5 hp @ 5250 rpm |
| Max Torque | 31.4 Nm / 3.2 kgf-m / 23.2 ft.lb @ 4750 rpm |
| Ignition | Magneto VAPE A67 contactless |
| Induction | Jikov 28-29 CE horizontal slide carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 4 Speed |
| Clutch | Multi disc in oil bath |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Tubular, double, closed |
| Front Suspension | Hydraulic telescopic fork, steel spiral springs |
| Rear Suspension | Swingarm, hydraulic telescopic suspension units, spiral springs |
| Front Brakes | 265 mm disc, hydraulic control |
| Rear Brakes | 165 mm drum, mechanical control |
| DIMENSION SPECS | |
| Overall Length | 2100 mm / 82.7 in |
| Overall Width | 780 mm / 30.7 in |
| Overall Height | 1160 mm / 45.7 in |
| Seat Height | 820 mm / 32.3 in |
| Wheelbase | 1370 mm / 53.9 in |
| Ground Clearance | 120 mm / 4.7 in |
| Dry Weight | 149 kg / 328 lbs |
| Wet Weight | 162 kg / 357 lbs |
| WHEEL SPECS | |
| Front Tyre | 2.15 B x 18 in |
| Rear Tyre | 2.15 B x 18 in |
| FUEL SYSTEM | |
| Fuel Capacity | 17 Litres / 4.5 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The 640 Tramp is a 1997 variant of the Type 640 350 cc two-stroke twin. It shares the air-cooled engine, four-speed gearbox and chain drive of the Style models; the name points to a more casual, rugged-looking roadster.
