50 Years of the BMW Isetta

Production period

1955 - 1957

Units

26.646

Price

2580 DM

Type

single-cylinder engine

bore x stroke (mm)

68 x 68

Displacement

247

Power output

12 PS bei 5800 U/min

compression

1 : 6,8

valves

Overhead, hemispherical combustion chambers

carburetion system

1 Bing 1/24 carburettor

clutch

Single dry plate clutch

transmission

Four-speed, constant-mesh gearbox, lever on left side panel, no synchromesh

gearbox ratios

10,05 / 1 : 5,17 / 1 : 3,54 / 1 : 2,7

reverse gear

1 : 12,15

drive transmission

1 : 2,31

generator

130 W

battery

12 V 31 Ah

spark plugs

Bosch W 250 T 1 or Beru 225/14

body/chassis

Trapezoidal steel tube frame bolted to body

rear-wheel suspension

Narrow-track-rigid axle with quarter-elliptic cantilever leaf-springs

wheel rims

3,0 D - 10

tyres

4,80 - 10

front brakes

Hydraulic drum brakes

front brake diameter (mm)

180

rear brakes

Hydraulic drum brakes

rear brake diameter (mm)

180

length x width x height (mm)

2285 x 1380 x 1340

wheel base (mm)

1500

front track (mm)

1200

rear track (mm)

520

empty weight (kg)

359

permissible total weight (kg)

580

fuel consumption (l/100 km)

5.8

Maximum speed

85