1974 BMW R90S

Year: 1974

GENERAL

Make: BMW
Model: R90S
Retail New: $3,430
Retail Current:

CHASSIS

Frame: Twin Loop Tubular
Wheelbase: 57.5
Seat Height: 32 inches
Front Tire: 3.25-19
Rear Tire: 4.00-18
Front Brakes:
Rear Brakes: 7.87 x 1.18 inch drum
Front Suspension: Telescopic fork
Rear Suspension: Swing arm, twin shocks with adjustable preload
Instrumentation: Speedometer with odometer, tachometer, clock, warning lights

ENGINE

Engine Type:
Engine Displacement:
Bore x Stroke:
Valve Train:
Valves per Cylinder: 2
Valve Adjustment:
Compression: 9.5:1
Carburation: Dual 38mm Dell'Orto
Ignition: Battery
Starting System: Electric, kick
Lubrication: High Pressure Circulating Lubrication System Using an Eaton Trochoid Gear Type Pump Driven from the Camshaft
Cooling System: Air

WEIGHT AND FUEL ECONOMY

Dry Weight: n/a
Wet Weight: 486 lbs
Load Capacity: n/a
GVWR: 877 lbs
Fuel Capacity: 6.3 gallons
Average MPG: 1974/BMW/1974-BMW-R90S
Gallons to Reserve: 6.24
Range to Reserve: 280 miles

TRANSMISSION

Clutch: Single Dry Plate
Number of Gears: 5
Final Drive: Shaft drive, crown wheel and pinion

PERFORMANCE

Charging Output: 280 watts
Battery:
Power: 67hp @ 7,000rpm
Torque: 55ft/lb @ 5,500rpm
Top Speed: 123mph
RPM at 60:
Standing 1/4: 13.05sec @ 103mph
0-60:

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