Puch 250 SGS Classic Motorcycle for Sale

History of the Puch 250 SGS

Produced by Steyr Daimler Puch AG in Graz, Austria, the Puch 250 SGS is recognised for its innovative split-single two-stroke engine. It played a significant role in making motorcycling accessible to a broader audience during the post-war era. Exported internationally, its presence in the US market as the Sears Allstate 250, available via mail-order catalogs, highlights its role in the democratization of motorcycle ownership. Its reputation as a reliable 'first bike' cemented its place in motorcycling history.

Model History: Evolution of the 250 SGS Series

The Puch 250 SGS succeeded earlier Puch two-stroke singles, refining the chassis and the unique Schwing-Gabel (swing fork) construction. Over the years, variations like the SGSA (sport version) and incremental improvements in engine and accessories broadened its appeal. Successor models shifted towards more conventional engine designs as emission and performance demands changed, making the SGS the end of an era for Puch’s split-single configuration.

Unique Features and Market Highlights

The stand-out technical feature of the Puch 250 SGS is its split-single two-stroke engine, delivering smooth power and reliability in everyday use. The frame features the robust Schwing-Gabel design for enhanced comfort and handling. Special US variants like the Allstate 'Twingle' further expanded its reach.

Technical Data

Special Editions and Variants

Alongside the standard SGS, versions such as the SGSA (Sport-Ausführung) were offered, featuring mild upgrades in powertrain characteristics and accessories. The US-market Allstate 250 variant, with Sears branding and SR250 model designation, is particularly notable for its catalogue-only sales approach and unique badging.

Weak Spots and Typical Issues

While the Puch 250 SGS is generally robust, careful attention should be paid to the split-single engine’s piston rings, crankshaft bearings, and gearbox—especially when original parts are fitted. Gaskets and seals may require regular inspection due to age, and the electrics, common to 1960s motorcycles, can exhibit contact corrosion. Proper identification of genuine SGS parts via engine and frame serials is advisable when sourcing replacements.

Engine, Transmission, and Handling

The characteristic split-single two-stroke delivers linear power and ease of maintenance. The swing-gabel front elegantly soaks up road irregularities, offering superior rider comfort for the era. The four-speed transmission is known for positive engagement and ruggedness, supporting predictable handling in urban and rural settings. The SGSA sport variant is highlighted for its more spirited engine response, whereas the US Allstate 250 is appreciated for its historical and collector relevance.

Exterior, Comfort, and Design Features

The 250 SGS displays characteristic Austrian motorcycle styling of the late 1950s and 60s: upright seating, wide bars, full fenders, and utilitarian tinwork. Original finishes included classic two-tone paint schemes and chrome accents. Special equipment such as leg shields, racks, and period accessories—often fitted ex-factory or through dealers—add individuality. Frame and engine numbers allow for precise identification and restoration authenticity.

Further Details

Original RBO Herman Strock components, such as pistons, gaskets, and bearings, are essential for correct restoration. The model’s documentation, including user manuals and catalog excerpts, remains widely circulated among enthusiast circles, supporting the continuing interest in the 250 SGS.

Summary: Puch 250 SGS in Focus

The Puch 250 SGS stands as a testament to mid-century Austrian motorcycle engineering. With its unique split-single engine, robust chassis, and international export history, it remains the most visible and supplied Puch classic in the collector market today. Detailed serial number tracking and availability of period-correct spare parts add to its practicality for both riders and restorers.