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Info: |
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| Model |
BMW
R39 (Internal - M40) |
| Engine
Type |
Single |
| Years
in Production |
1925
- 1937 |
| Number
Sold |
855 |
| Followed
on from |
This
was the first BMW Single |
| Capacity |
247cc |
| Bore
x Stroke |
68mm
x 68mm |
| Power
@ RPM |
6
bhp at 4000 rpm |
| Top
Speed |
62
miles per hour |
| Compression |
6.0:1
OHV |
| Fuel
System |
Single
carburettor by BMW |
| Oil
and Lubrication |
Force
feed, Geared pump |
| Gears
& Ratios |
3 |
| Clutch |
Single
plate, dry clutch |
| Drive
& Ratios |
Shaft
- ratios 6-9.28-13.7 |
| Electrical
System |
Bosch
magneto Type G. 1.8v, 15W |
| Frame
Type |
Twin
loop, tubes |
| Front
Suspension |
Four
layer, plate spring |
| Rear
Suspension |
Rigid |
| Front
Brakes |
Drum,
internal 150mm shoe |
| Rear
Brakes |
External
on cardan shaft, shoe |
| Rims |
27
x 3.5 |
| Front
Tyre |
27
x 3.5 |
| Rear
Tyre |
27
x 3.5 |
| Size
LxWxH |
2050mm
x 800mm x 950mm |
| Wheel
Base |
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| Tank
Size |
10
litres |
| Fuel
Consumption |
2.5
l per 100km |
| Oil
Consumption |
1.5
l per 1000 km |
| Weight
with Fuel |
110
kg |
| Maximum
Loading |
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| Colours |
Black
with white pin stripe |
| Famous
Riders |
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| Other
Notes |
Originally
produced with no front brake. |
| Links
for Model |
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