A East German company known for building cars, bikes, and firearms, Simson had a tumultuous history which included being taken over by the Third Reich (Simson’s ownership was Jewish) and later on by the Russians after the second World War. The Russians renamed the company AWO, so this bike is also known as the AWO Sport.
Despite the name, the engine was a 248cc unit that produced about 14 horsepower. After 1959 power went up to 15.5 horsepower. The 425 actually comes from 4-stroke engine, 250cc displacement. It seems that AWO created a 425T model that was based on the BMW R23, then created the S model which was a sportier version. The bike has a dual loop tubular frame with a hydraulically damped telescopic fork and a 6V electrical system. The transmission had four speeds and power was sent to the rear wheel via a shaft drive.
This specific Simson 425S has 18,640 miles but was recently restored to ‘perfect condition’. It seems that this bike has only been with the same family since new – the seller’s grandfather was the only rider, and the seller restored it before making it available to you, so you can have a bike you probably won’t ever see a twin of on the streets, at least in the US.
Find this Simson 425S for sale in Sofia, Bulgaria with a BIN of $5,500 or best offer