Junak M07R

Make Model	Junak M07R
Year	1956 - 59
Production	10000 (as part of the M07)
Engine	Four stroke, single cylinder, OHV
Capacity	349 cc / 21.3 cub. in.
Bore x Stroke	75 x 79 mm
Compression Ratio	7.0:1
Cooling	Air/Oil cooled
Lubrication	Dry-sump
Ignition	Magneto
Battery	14 Ah, 6V
Dynamo	45 W
Starting	Kick-start
Clutch	Multi-plate clutch with cork inserts working in an oil bath
Max Power	14 kW / 19 hp @ 6000 rpm
Max Torque	27.5 Nm / 2.8 kgf-m / 20.3 ft-lb @3800 rpm
Transmission	Four-speed constant-mesh
Final Drive	Chain
Gear ratios	1st 3.04 / 2nd 1.97 / 3rd 1.29 / 4th 1.00:1
Frame	Double, cradle-type, welded throughout of tubing, provided with holders for side car mounting.
Front Suspension	Telescopic fork with coil springs and oil damping
Rear Suspension	Swinging arm sprung on telescopic elements with coil springs and oil damping.
Front Brakes	Full hub width, of expander shoe type, hand operated
Rear Brakes	Full hub width, of expander shoe type, foot operated
Wheels	Wire type, with full width hubs made of light alloy, interchangeable (also with side-car wheel). Both wheels with quick-detachable spindles
Front Tyre	19 in
Rear Tyre	19 in
Front Rim	89 mm / 3.5 in
Rear Rim	89 mm / 3.5 in
Trail	72 mm / 2.8 in
Dimensions	Length: 2172 mm / 85.5 in Width: 740 mm / 29.1 in Height: 1095 mm / 43.1 in
Wheel Base	1417 mm / 55.8 in
Seat Height	755 mm / 29.7 in
Ground Clearance	170 mm / 6.7 in
Dry Weight	170 kg / 374.8 lbs
Fuel Capacity	17 l / 3.9 US gal
Average Consumption	3.5 l/100 km / 28.6 km/l / 67.2 mpg
Top Speed	125 km/h / 77.7 mph

The M07R is virtually identical to the M07. It has been adjusted slightly by removing the headlight, different shocks and mudguard. The purpose was to make it fit for racing purposes especially off-road competitions.