1956-57 ADLER MR100 Roller Luxus SPECIFICATIONS Engine: air cooled 2 stroke single 98cc bore:50mm, stroke: 50mm loop scavenged, alloy piston compression 5.7:1 output 5.1 HP DIN @ 5800 rpm Lubrication: 25:1 petroil mixture. Fuel consumption: 1.8 l/100k (250 mpg) Gearbox: 3 speed Max speed: 65 kmph (40 mph) Dimensions: Weight: 65 kgs Tyres: 2.50x15, front: 15.5 psi rear: 20 psi Fuel tank: 7 litres Rear suspension: Front suspension: swinging leading arm with hydraulic skock absorbers. Electrical: 6 volt 30 watt flywheel magneto,