The Imme R100 was a lightweight motorcycle made by Riedel AG from 1948 to 1951. It is noted for its simple and innovative design with many advanced features. With low cost and technical innovation, the R100 sold well, but reliability problems and low profit margins resulted in warranty costs driving Riedel AG into bankruptcy.

Quick facts: Manufacturer, Also called, Production, Assemb...
Imme R100
Imme R100 viewed from the left
ManufacturerRiedel AG
Also calledRiedel R100
Riedel Imme
AssemblyImmenstadt, West Germany
SuccessorZMG R175
Engine99 cc (6.0 cu in) piston-ported two-stroke single-cylinder engine
Bore / stroke52 mm × 47 mm (2.0 in × 1.9 in)[1]
Power4.5 PS (3.3 kW; 4.4 hp) at 5,800 rpm
Ignition typekick start
TransmissionThree forward speeds with no neutral position
Frame typeTubular steel spine frame, with engine mounted on the swingarm
SuspensionFront: Single-sided girder fork with coil spring and friction damper
Rear: Single-sided swingarm with coil spring and friction damper
BrakesDrum brakes, front and rear
Tyres2.50 x 19, front & rear[2]

The advanced specification of the Imme R100 caused it to be highly regarded. The R100 was one of the motorcycles included in "The Art of the Motorcycle" exhibition at the Solomon R. Guggenheim Museum in 1998 and is on permanent display at Barber Vintage Motorsports Museum.

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