|Years built:||1973, 1974 and 1975|
|Bikes produced:||8250 bikes for 1973, 7019 bikes for 1974 and 1568 bikes for 1975|
|Price in 1973:||2456 francs T.T.C (in France)|
|Vehicle Ident. # (VIN):||2D|
|Spark Plug:||HD 5R6A|
|Carburetor:||Dell Orto SH2/20|
|Electrical System:||6 Volt|
|Model designation letter:||X|
|Type:||2 cycle, single cylinder, 90,43ccm, air cooled|
|Bore:||48 mm (1.89 inches)|
|Stroke:||50 mm (1.97 inches)|
|Piston displacement:||90,43 ccm|
|Compression ratio:||9.2: 1|
|Lubrication system:||Fuel and oil mixture|
|Starter system:||Primary kick|
|Overall length:||145 cm|
|Handlebar width:||84 cm|
|Ground clearance:||15 cm (5.9 inches)|
|Front suspension:||Telescopic oil dampened, three different types over the year: Cerrani, Marzocchi, Betor|
|Rear suspension:||Swinging arm, oil dampened;|
|Fuel tank:||5,3 litres (1.4 gallons) Total|
|Transmission:||1,37 litres (1 quart)|
|Front fork:||28 mm diameter (Marzocchi), 150ccm each side (See page 2 for more details!)|
|Clutch:||wet, multi plate|
|Gear ratios:||1st: 20,06, 2nd: 11,23, 3rd: 7,38, 4th 5,77|
|Gearshift pattern:||1 down - 3up|
Wheels and Brakes
|Front wheel tire:||3.00 x 10 (Pirelli MT 74)|
|Rear wheel tire:||3.00 x 10 (Pirelli MT 74)|
|Front brake:||internal expanding|
|Rear brake:||internal expanding|
|Rims (Front & Rear):||Disc Wheel, WM1= 1.6x 10"|
|Tire pressure (Front):||18 PSI|
|Tire pressure (Rear):||22 PSI|
The X-90 was sold as 1973-1975 model years. The production year and model year are not always identical.
Only the gas tank was painted, the fenders were always raw stainless steal. the decal design
changend on every model year.
If you need gas-tank decals for your X-90, please feel free to contact me, I may help you there!
The X90 replaced the earlier Shortster (MC-65) which was available in 1972 only.
Page  
Thanks to Bram from Luxembourg for the picture of his 1973 X90!
Thanks to Greg from Florida for the pictures of the black 1974 and 1975 X-90s!
Do you have further information? E-Mail: firstname.lastname@example.org