Alder Motorcycles

Today in Motorcycle History

Adler MR100 Roller Junior 1955-1957


Air cooled single cylinder two-stroke, 98cc, B/S 50x50mm
Compression ratio 5.7:1

Power: 4.0 HP @ 5600 rpm

Lubrication: 25:1 petroil mixture.

Fuel consumption: 1.8 litres/100k

Gearbox: 3 speed, foot change

Max speed: 60 km/h

Weight: 65 kg

Tyres: 2.50 x 15" front and rear

Fuel tank: 7 litres

Rear suspension:

Front suspension: Earles style with telescopic hydraulic dampers.

Electrical system: 6 volt 30 watt flywheel magneto.