DUCATI500 Sport Desmo 1977 - 1978
Franco Zaiubouri replaced De Eccher as Ducati's General Manager in 1975 and was set to revive the brand. The sales of the parallel twins were very poor, so the new manager planned to introduce a new model to make the twins more attractive to buyers.
The 1977 Ducati 500 Sport Desmo was introduced with a desmodromic head designed by Taglioni that raised the power to 50 hp but gave the motorcycle a narrow powerband. Some minor modifications were made to the engine.
The style was handled by Leopoldo Tartarini. It featured a down tube frame, a 14-liter fiberglass fuel tank with a matching seat, FPS cast-aluminum wheels, and a rear disc brake. It was finished in red and white with a black exhaust system.
The Ducati 500 Sport Desmo started production in 1976, and in 1977, a smaller 350cc version was introduced in a black and yellow finish. Most Sport Desmo motorcycles were manufactured at the Italjet factory, with engines supplied by Ducati.
The 1977 Ducati 500 Sport Desmo had its heartbeat set by a 497cc four-stroke parallel-twin air-cooled engine with two Dell'Orto carburetors in charge, boasting 50 hp with a peak force at 8,500 rpm.
The engine was married to a five-speed manual transmission with a wet multi-disc clutch and sent the power to the rear axle through a final chain drive.
DUCATI500 Sport Desmo 1977 - 1978 Specs
Type: |
air-cooled, four-stroke, parallel twin cylinder, SOHC, 2 valves per cylinder |
Displacement: |
497 cm3 |
Bore X Stroke: |
3.1x2.0 in OR 79 mm |
Compression Ratio: |
9.6:1 |
Horsepower: |
50/8500 KW(hp)/RPM |
Torque: |
0/- lb-ft/RPM OR 0 Nm/RPM |
Fuel System: |
2x30mm DellOrto PHM carburetors |
Gearbox: |
5-speed, manual |
Clutch: |
wet multi-disc, manual |
Primary Drive: |
- |
Final Drive: |
chain |
Frame: |
steel |
Front Suspension: |
hydraulic telescopic fork |
Rear Suspension: |
dual shock absorbers |
Front Brake: |
dual 260mm discs |
Rear Brake: |
single 260mm disc |
Overall Length: |
- |
Overall Width: |
- |
Seat Height: |
- |
Wheelbase: |
- |
Ground Clearance: |
- |
Weight: |
403 lbs OR 183 kg |
Fuel Capacity: |
4.8 gallons OR 18.2 L |
Front: |
3.25-18 |
Rear: |
3.50-18 |
Power pack: |
- |
Nominal Capacity: |
- |
Maximum Capacity: |
- |
Charger type: |
- |
Charging time (normal): |
- |
Charging time (quick): |
- |
Range: |
- |
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