1956-57 ADLER MR125 Roller Sport SPECIFICATIONS
       
Engine: air cooled 2 stroke single
        123cc
        bore:54mm, stroke: 54mm
        loop scavenged, alloy piston
        compression 5.7:1
        output 7.0 HP DIN @ 5800 rpm 
Lubrication: 25:1 petroil mixture.
Fuel consumption: 1.8 l/100k (250 mpg)
Gearbox: 3 speed
Max speed: 70 kmph (44 mph)
Dimensions:  Weight: 75 kgs 
Tyres:  2.50x15, front:    15.5 psi
                  rear:    20 psi
Fuel tank:  7 litres
Rear suspension:  swingarm with hydraulic
                  shock absorbers
Front suspension: swinging leading arm with
                  hydraulic shock absorbers.
Electrical: 6 volt 30 watt flywheel magneto,