The Vintage Motorcycles
Specialists in antique, classic, veteran and vintage motorcycles.
Specialists in antique, classic, veteran and vintage motorcycles.
Authentic, mechanically significant, and rich with restoration potential, the 1926 BMW R42 500cc represents a foundational model in BMW's early motorcycle lineage. Offered as a partially prepared restoration project, this example combines originality with extensive mechanical groundwork already completed - making it both accessible and highly desirable for collectors and specialists.
Powered by a 500cc horizontally opposed twin-cylinder (boxer) engine, the R42 reflects BMW's pioneering engineering philosophy. This side-valve configuration delivers smooth, balanced power, while the marque's signature shaft-drive system ensures durability and low-maintenance operation - features that distinguished BMW from many contemporaries of the era.
What sets this motorcycle apart is the substantial preparatory work already undertaken. The ignition magneto has been fully overhauled and upgraded with an electronic regulator, while the cylinders have been bushed and returned to original specification following precision honing. The crankshaft has been rebuilt, with connecting rods remanufactured, and the frame itself has already undergone restoration. Numerous components have been carefully reconditioned and nickel-plated, reflecting a thoughtful and methodical approach to the restoration process.
Equally important is the integrity of its originality. The engine, gearbox, frame, fork, and fuel tank are all confirmed to be original components. The original type plate corresponds with matching frame and engine numbers, and the transmission, crankshaft, and engine serial numbers remain consistent - indicating a configuration aligned with factory delivery. Supporting documentation, including photographs of the motorcycle in its discovered condition, further reinforces its provenance.
Offering both authenticity and flexibility, this 1926 model is a rare example of BMW vintage motorcycles and this BMW R42 can be completed to full restoration standard upon request, or acquired as a high-quality project with significant progress already achieved. For collectors seeking a historically correct and mechanically prepared early BMW, it represents a rare and compelling opportunity.
The BMW R42 was introduced in the mid-1920s as part of BMW's early expansion into motorcycle production, following the success of the pioneering R32. Designed as a more accessible model, the R42 retained the core engineering principles that would define the brand - most notably the horizontally opposed boxer engine and shaft-drive transmission.
During this formative period, BMW quickly established a reputation for precision engineering and innovative design. The use of a twin-cylinder boxer layout not only improved balance and cooling efficiency but also created a distinctive mechanical identity that continues to define BMW motorcycles today.
The R42 played a key role in broadening BMW's reach, offering a reliable and refined machine suitable for everyday use as well as longer-distance travel. Its straightforward yet robust engineering contributed to its longevity, though relatively few examples have survived in complete and original form.
Motorcycles with matching numbers and documented provenance are particularly valued within the collector community, as they provide assurance of authenticity and historical continuity. This example, retaining its original core components and factory-aligned configuration, represents a highly desirable foundation for accurate restoration.
Today, the BMW R42 is recognized as an important milestone in early motorcycle development. As both a project and a historical artifact, it offers collectors a rare opportunity to engage directly with the origins of BMW's engineering legacy while shaping the next chapter of its preservation.
The Vintage Motorcycles presents a carefully curated selection of authentic German vintage motorcycles known for precision engineering and mechanical innovation. This includes historically significant machines from manufacturers such as BMW, Zundapp, and NSU, representing Germany's engineering excellence.
All motorcycles are prepared for global collectors with secure logistics provided through a fully insured international shipping service. Current available models can be viewed in our vintage motorcycles for sale section.
Our German collection reflects advanced mechanical design, including boxer engines, shaft-drive systems, and precision-balanced engineering that set global standards in motorcycle development.
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