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Model Developments Civilian/Military 750cc Side
Valve M72 (Russian Moto to K-750M) P.J. Ballard
|
Model |
M-72 |
M-72M |
M-72K |
M-72H |
K-750 |
K-750M |
MT12 |
|
Years |
1941-1956 |
1956-1960 |
1954-1960 |
1956-1959 |
1959-1963 |
1963-1977 |
-1984 |
|
Factory |
MMZ, IMZ
KMZ, ГMZZMZ,
K-0 |
IMZ
Mainly Military |
IMZ - End
of
IMZ 750 production |
KMZ
Military
Production |
KMZ
Military
Production |
KMZ
Military
Production |
KMZ
Civilian +
some army |
|
Capacity |
746 |
746 |
746 |
746 |
746 |
746 |
746 |
|
Compression Ratio |
5.5 |
5.5 |
5.5 |
5.5 |
6.0 |
6.0 |
6.0 |
|
Power BHP |
22 |
22 |
27 |
22 |
26 |
26 |
26 |
|
RPM for
max power |
4600 |
4600 |
5000 |
4600 |
4900 |
4900 |
4900 |
|
Torque
[Nm] |
4.0 |
4.0 |
4.2 |
4.0 |
4.2 |
4.2 |
|
|
RPM max
torque |
3200 |
3200 |
3500 |
3200 |
3200 |
3800 |
|
|
Front fork |
Telescopic
BMW Type |
Telescopic
BMW Type |
Telescopic
BMW Type |
Leading
link,
as M53 |
Leading
link |
Telescopic
New design |
Telescopic
New design |
|
Rear
suspension |
Plunger |
Plunger |
Plunger |
Plunger |
Swing arm |
Swing arm |
Swing arm |
|
Air filter |
net |
Inertia /
oil |
mesh |
Inertia /
oil |
Inertia /
oil |
Inertia /
oil |
Inertia /
oil |
|
Generator |
Г11 |
Г11A |
Magneto |
Г11A |
Г11A |
Г414 |
ГГ414 |
|
Regulator |
PP-1 |
PP-31A |
None |
PP-31A |
PP-31A |
PP-302 |
PP-302 |
|
Front
Brake |
SLS |
SLS |
SLS |
SLS |
SLS |
SLS |
TLS |
|
Dry Weight [kg] solo
With sidecar |
205
336 |
211
340 |
190
227 |
204
335 |
204 or 210
315 or 335 |
209
318 |
-
? |
|
Load max [kg] solo
With sidecar |
219
359 |
225
380 |
204
267 |
|
|
|
-
260 |
|
Top Speed kph solo
With sidecar |
105
85 |
105
85 |
-
120 |
-
90 |
-
90 |
-
90 |
-
90 |
|
Fuel
litres/100km at specified kph with sc |
5.9 - 50 |
7.5 50 |
- |
6.0 45 |
6.0 45 |
6.0 45 |
9.0 65 |
|
Wheel
base [mm] |
1400 |
1400 |
1450 |
1450 |
1450 |
1450 |
1510 |
|
1. |
M72 first development (probably under licence) from 1938
BMW R71, BMWs last side valve motor! M72 used lots in WWII. |
|
2. |
IMZ Irbit in Urals. MMZ-Moscow, ZMZ.-?, K-0 ? ГMZ-Gorky.
KMZ Kiev (Dnieper). (MZ ~ Motor Works). |
|
3. |
K-750M had sidecar wheel drive through differential (as
BMW WWII R75 system) with diff lock. Exclusively used by military. |
|
4. |
MT12 Sidecar wheel drive through diff. but no lock,
sold for civilian use, maybe military use with diff lock. 4 speed &
reverse gearbox. |
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