✦ Published
BMW 11 Series 2
1931
1931
The 1931 BMW R11 Series 2 represents a significant chapter in BMW's early motorcycle development, building upon the foundational twin-cylinder boxer engine concept that would define the brand for decades. Introduced during a period of intense innovation in motorcycling, the R11 Series 2 was positioned as a reliable and capable touring machine. It faced stiff competition from established manufacturers of the era, notably models like the Indian Scout and the Harley-Davidson Model D, both vying for market share among riders seeking robust and dependable two-wheeled transport.
At its heart, the R11 Series 2 was powered by a 745.0 ccm (45.46 cubic inches) two-cylinder boxer, four-stroke engine. This horizontally opposed configuration was a hallmark of BMW design, known for its balanced operation and effective cooling. The engine produced a respectable 18.0 HP (13.1 kW) at 3400 RPM, allowing the R11 Series 2 to achieve a top speed of 100.0 km/h (62.1 mph). Fuel capacity stood at 14.00 litres (3.70 US gallons), offering a decent range for the touring aspirations of its riders. This specification package solidified its reputation as a sturdy and practical machine for its time.
Riding characteristics of the R11 Series 2 leaned towards stability and comfort, rather than outright sportiness. Its relatively long wheelbase and low center of gravity, inherent to the boxer engine layout, contributed to predictable handling. The sprung saddle and basic suspension components provided a degree of comfort over varied road surfaces, which were often less than ideal in the 1930s. The upright riding position, typical for motorcycles of this era, ensured a relaxed posture for longer journeys, a key consideration for its intended use as a touring machine.
The 1931 BMW R11 Series 2 was primarily aimed at discerning riders seeking a dependable and well-engineered touring motorcycle. Its robust construction and proven boxer engine made it appealing to those who valued reliability and ease of maintenance. While not the fastest or most powerful machine of its time, its combination of solid engineering, reasonable performance, and touring capability offered a compelling package for riders looking for a trustworthy companion on the open road. It served as a testament to BMW's early commitment to quality and engineering prowess in the burgeoning motorcycle market.
✅ Why buy this bike?
• Shaft drive offers superior reliability and cleanliness compared to chain drive of the era. • Horizontally opposed twin-cylinder engine provides excellent balance and smooth power delivery. • Robust construction and high-quality German engineering ensured longevity and durability. • Relatively comfortable ride for its time, especially on longer journeys, due to engine layout. • BMW's early commitment to quality made it a desirable and prestigious motorcycle. • Innovative enclosed drivetrain protected components from elements and reduced maintenance.⚠️ Things to consider
• Limited top speed and acceleration compared to some contemporary, more performance-oriented bikes. • Heavy dry weight made low-speed maneuvering and pushing difficult for many riders. • Drum brakes offered modest stopping power, especially in wet conditions, by modern standards. • Lack of rear suspension made for a harsh ride on anything but perfectly smooth roads. • High purchase price made it inaccessible to the average rider during the Great Depression.The BMW 11 Series 2 produces 18 HP, fitting A2 license limits (max 35 kW / 47 HP). For riders 18+.
Manufacturer-quoted consumption: 4.50 litres/100 km (22.2 km/l or 52.27 mpg).
⛽ Tank: 14.00 litres (3.70 US gallons)
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