Neckarsulmer 1 1-4
1908 NSU Neckarsulmer 1 1-4 Technical Analysis & Specification Breakdown
Built around NSU's sport motorcycle platform, the 1908 NSU Neckarsulmer 1 1-4 relies on a 210 cc (12.8 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 1.3 HP (0.9 kW) at 2,200 rpm, transferring power to the rear wheel through belt final drive. With a specific output of 6.2 HP per liter, the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
On the scales, the Neckarsulmer 1 1-4 measures 38 kg (84 lbs) dry. The 4-liter (1.1 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 40 km/h (25 mph).
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