NSU 251 OSL

⚠️ Things to consider

• Limited Power and Performance: The NSU 251 OSL's engine output is modest by modern standards, which may not satisfy riders looking for high performance or rapid acceleration.
• Weight and Handling: Weighing more than some contemporary motorcycles, the OSL can feel cumbersome, affecting its handling and maneuverability, especially for less experienced riders.
• Availability of Parts: Being a vintage motorcycle, sourcing replacement parts can be challenging, leading to potential delays in maintenance or repairs.
• Comfort for Long Rides: The design and ergonomics of 1930s motorcycles like the NSU 251 OSL may not provide the comfort or rider support needed for extended journeys, making them less suitable for long-distance riding.
• Safety Features: Compared to modern motorcycles, the NSU 251 OSL lacks advanced safety features such as disc brakes, ABS, and improved lighting systems, which can pose risks in today's traffic environments.

⚖️ Comparison & Competition

• BMW R5 (1936)
• The BMW R5 is a classic motorcycle known for its innovative design and engineering. It features a 494cc flat-twin engine, a characteristic shaft drive, and a streamlined aesthetic that was revolutionary for its time. The R5 is celebrated for its smooth ride and solid performance, making it a favorite among vintage motorcycle enthusiasts.
• DKW RT 125 (1939)
• The DKW RT 125 is a lightweight motorcycle that gained popularity for its simplicity and reliability. Equipped with a 125cc two-stroke engine, it was known for its excellent fuel efficiency and ease of handling. The RT 125 played a significant role in establishing DKW as a leading manufacturer in the pre-war era.
• AJS Model 14 (1937)
• The AJS Model 14 is a British motorcycle that features a 350cc single-cylinder engine, renowned for its dependable performance and classic styling. Known for its agility and good handling on the road, the Model 14 was popular among both everyday riders and those who participated in competitions.
• Velocette KSS (1936)
• The Velocette KSS is a British motorcycle that features a 349cc single-cylinder engine with an overhead camshaft, which was quite advanced for its time. The KSS is celebrated for its lightweight construction and competitive performance, making it a favorite among racers and touring enthusiasts alike.
• Norton 16H (1930)
• The Norton 16H is a robust motorcycle known for its durability and performance, particularly during the 1930s. With a 490cc single-cylinder engine, the 16H was used extensively during World War II by military personnel. Its reputation for reliability and ruggedness has made it an enduring classic in the motorcycle community. These motorcycles not only represent significant engineering achievements of their time but also embody the spirit of motorcycling in the pre-war era

The NSU 251 OSL produces 10 HP, fitting A2 license limits (max 35 kW / 47 HP). For riders 18+.

Manufacturer-quoted consumption: 2.30 litres/100 km (43.5 km/l or 102.27 mpg).

⛽ Tank: 11.50 litres (3.04 gallons)

Insurance grouping for NSU 251 OSL (242cc):

• 📋 Group 8-15 — mid-range
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Insurance Calculator (UK est.)

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Personalised premium estimate for the NSU 251 OSL (UK rates):

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Price Estimate

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Estimated price range for the NSU 251 OSL based on comparable motorcycles:

AVERAGE

$2,213

📊 Category-based (25 motorcycles) · Approximate (USD)

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Buy New & Used

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Find new and used NSU 251 OSL 1937 listings:

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• 👤 Final premium varies by rider age, history, location.