These are the known mechanical and performance specifications for your 1955 DKW RT 125 2H.
Basic Specs

Engine
Displacement123.00 ccm (7.51 cubic inches)
Type
DetailsSingle cylinder, two-stroke
Max RPM
Compression6.5:1
Bore/Stroke52.0 x 58.0 mm (2.0 x 2.3 inches)
Valves/Cylinder
FuelingCarburettor
IgnitionMagneto
Exhaust
Lubrication
CoolingAir
Performance
Horespower5.70 HP (4.2 kW)
Torque
Top Speed84.0 km/h (52.2 mph)
Chassis
Frame TypeSingle cradle
Rake
Trail
Front SuspensionTelescopic fork
Front Travel
Rear SuspensionNone
Rear Travel
SeatDual
Seat Height
Alt. Seat Height
Total Height660 mm (26.0 inches)
Total Length1,959 mm (77.1 inches)
Total Width660 mm (26.0 inches)
Ground Clearance
Wheelbase
Dry Weight
Wet Weight
Wheels & Brakes
Front Tire/Tyre2.50-19
Rear Tire/Tyre2.50-19
Front BrakesExpanding brake (drum brake)
Front Brake Diameter
Rear BrakesExpanding brake (drum brake)
Rear Brake Diameter
WheelsSpoked
Comments