Hatz 1B50 Diesel

2018 Sommer Hatz 1B50 Diesel Technical Analysis & Specification Breakdown

Engineered by Sommer for the allround motorcycle segment, the 2018 Sommer Hatz 1B50 Diesel relies on a 516 cc (31.5 cu in) air-cooled diesel powerplant. In factory specification, peak output is rated at 12 HP (8.8 kW) at 3,500 rpm while maximum torque reaches 27.5 Nm (20.3 lb-ft) at 2,000 rpm, transferring power to the rear wheel through a 4-speed gearbox and chain final drive. With a specific output of 23.3 HP per liter and a 1,500 rpm working window between peak torque (2,000 rpm) and peak power (3,500 rpm), the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.

On the scales, the Hatz 1B50 Diesel measures 180 kg (397 lbs) wet (curb), translating to a power-to-weight ratio of 0.07 HP/kg (15 kg per horsepower). Rider ergonomics and chassis geometry center around a 760 mm (29.9 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,410 mm (55.5 in) wheelbase engineered for quick, flickable steering geometry. The 13.5-liter (3.6 US gal) fuel tank paired with a rated consumption of 2.5 L/100 km provides an estimated theoretical range of roughly 540 km (336 miles) between fill-ups, while factory top speed is listed at 100 km/h (62 mph).

Within MotoLibrary's Sommer archive, this model family spans 2 indexed model years from 2018 to 2019, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.