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Info: |
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| Model |
BMW
R47 |
| Engine
Type |
Flat
twin - Boxer, designation M51, which was an
uprated R37 Engine. |
| Years
in Production |
1927
- 1928 |
| Number
Sold |
1978 |
| Followed
on from |
BMW
R37 |
| Capacity |
494
cc |
| Bore
x Stroke |
|
| Power
@ RPM |
18
ps at 4000 rpm |
| Top
Speed |
110
Km/hr |
| Compression |
5.8
: 1 |
| Fuel
System |
Carburettor
- note additional tank on this model for racing. |
| Oil
and Lubrication |
Manual |
| Gears
& Ratios |
3 |
| Clutch |
|
| Drive
& Ratios |
2
sets, one for sidecar support |
| Electrical
System |
Magneto |
| Frame
Type |
welded
steel tube |
| Front
Suspension |
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| Rear
Suspension |
|
| Front
Brakes |
Single
shoe drum |
| Rear
Brakes |
Drum |
| Rims |
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| Front
Tyre |
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| Rear
Tyre |
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| Size
LxWxH |
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| Wheel
Base |
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| Tank
Size |
14
litres |
| Fuel
Consumption |
4
- 5 litres per 100km |
| Oil
Consumption |
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| Weight
with Fuel |
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| Maximum
Loading |
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| Colours |
Black |
| Famous
Riders |
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| Other
Notes |
Unique
feature was that the valve gear was enclosed
unlike other machines of the day which had
open valve systems. |
| Links
for Model |
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