Vespa 90, 90 SS and 90 Racer (1963-84) technical specifications

Vespa 90, 90 SS and 90 Racer is produced in 1963-84. Engine is Two stroke, single cylinder, displacement 88.5 cc / 5.4 cub in , produces power 4.4 kW / 6 hp @ 6000rpm. Vespa 90, 90 SS and 90 Racer top speed is 93 km/h / 57.8 mph. Vespa 90, 90 SS and 90 Racer weighs 73 kg / 161 lbs. Vespa 90, 90 SS and 90 Racer has 4 photos.

Technical specifications

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Model:	90, 90 SS and 90 Racer
Years:	1963-84
Engine:	Two stroke, single cylinder
Capacity:	88.5 cc / 5.4 cub in
Bore and Stroke:	47 x 51 mm
Mixture:	1:50
Compression Ratio:	8.7:1
Carburettor:	Dell'Orto SHB 16/10
Cooling:	Forced air cooled
Battery:	6V
Induction:	Rotary valve
Ignition:	Flywheel magneto coil
Starting:	Kick start
Spark Plug:	Bosch W340 T1/T or /U, Champion L86
Clutch:	Oil bath, multi plate
Max Power:	4.4 kW / 6 hp @ 6000rpm
Transmission:	3 gears (4 gears for the SS and Racer)
Gear ratios for SS and Racer:	1st 14.74 / 2nd 9.80 / 3rd 7.06 / 4th 5.31:1
Final Drive:	Direct drive
Frame:	Pressed sheet steel with streamlined monocoque structure
Front Suspension:	Coil spring and hydraulic shock absorber
Rear Suspension:	Coil spring and hydraulic shock absorber
Front Brakes:	125 mm drum
Rear Brakes:	150 mm drum
Wheels:	Pressed steel flanges, interchangeable, split rims
Front Tyre:	3 x 10"
Rear Tyre:	3 x 10"
Dimensions:	Length: 1665 mm / 65.6 in Width: 670 mm / 26.4 in Height: 1015 mm / 40.0 in
Wheelbase:	1180 mm / 46.5 in
Ground Clearance:	225 mm / 8.9 in.
Turning Radius:	1650 mm / 64.9 in
Dry Weight:	73 kg / 161 lbs
Fuel Capacity:	5.2 L / 1.3 US gal
Reserve:	0.7 L / 0.18 US gal
Consumption:	1.8 L/100 km / 55 km/l / 130 US mpg
Top Speed:	93 km/h / 57.8 mph