The Scrambler was primarily intended for the American market. It underwent continual modification until 1968, when the true Scramblers with "wide-casing" engines were brought out, first in the 250 and 350 versions and then, in 1969, the 450.
The Scrambler series included a few bikes with Desmo cylinder heads and was subjected to continual technical adjustment right up until 1974, when production was halted.
The reasons for the Scrambler's commercial success were manifold. It had an excellent frame (it was even used for track racing, which is probably unprecedented in motorbike history) and an engine perfectly suited for its function. It was not the fastest bike of its day, but its general performance and absolutely centered riding position, made it one of the most delightful machines of the era. It was, moreover, extremely stylish: rounded lines, simultaneously classical and modern, and bright colors contrasting with the black running gear and chrome gas tank.
By and large, the Scrambler was considered a balance between American and European schools of motorcycling. It was an extremely fashionable bike, and remains popular today.
Technical specification of Duacati Scrambler
ENGINEType Type 4-stroke single-cylinder, with 10° forward configuration
Light alloy cylinder head and block (with cast-iron liner)
Bore and Stroke 87mm x 75 mm
Total displacement 436 cc
Compression ratio 9.3:1
Single overhead camshaft, twin valves with gear-shaft/helical valve gear
Lubrication Wet sump forced lubrication with gear pump, 2.2 liters oil
Carburetor Dellorto VHB 29AB carburetor with 29 mm choke
Ignition Coil ignition
Electrical equipment 6 V-70 W alternator and 6 volt 13.5 Ah battery
Power-27 HP at 6500 rpm
Top speed-130 kmph
TRANSMISSIONTransmission Five-speed gearbox
Wet, multi-plate clutch
Simplex open cradle tubular frame
Front hydraulic telescopic forks
Swinging arm rear suspension with adjustable shocks
Full width drum brakes
3,50 x 19''
4,00 x 18'
Fuel tank capacity