14 August. Friday 2026
Sommer Diesel 516 - 2019 Specifications and Reviews
The 2019 Sommer Diesel 516 is a modified Royal Enfield based on a custom German design, powered uniquely by diesel or biodiesel fuel with minimal electronics. Built for adventurous riders seeking simplicity and fuel efficiency, this stripped-down motorcycle is best known for its unconventional diesel engine and analog-only instrumentation. Weighing 180kg with stainless steel spoked wheels and drum brakes, it suits riders prioritizing practicality and self-sufficiency over modern technology.
General information | |
| Price as new | Do you know this bike?Click here to rate it. We miss 1 vote to show the rating. |
| Category | Allround |
| Year | 2019 |
| Model | Sommer Diesel 516 |
Engine and Transmission Specifications | |
| Emission details | Euro 4 |
| Greenhouse gases | 58.0 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Fuel consumption | 2.50 litres/100 km (40.0 km/l or 94.09 mpg) |
| Clutch | 5-plate in oil bath |
| Transmission type | Chain (final drive) |
| Gearbox | 4-speed |
| Cooling system | Air |
| Fuel system | Injection |
| Valves per Cylinder | 2 |
| Bore x Stroke | 93.0 x 76.0 mm (3.7 x 3.0 inches) |
| Compression | 20.5:1 |
| Max RPM RPM | 4000 |
| Top speed | 105.0 km/h (65.2 mph) |
| Torque | 27.5 Nm (2.8 kgf-m or 20.3 ft.lbs) @ 2000 RPM |
| Power | 12.0 HP (8.8 kW) @ 3500 RPM |
| Engine details | Hatz 1B40 engine |
| Engine type | Diesel |
| Capacity: | 516.0 ccm (31.49 cubic inches) |
| | |
Brakes, suspension, Frame and wheels | |
| Seat | Single seat |
| Wheels | Stainless steel rims, wire spoked |
| Rear brakes | Expanding brake (drum brake) |
| Diameter | 280 mm (11.0 inches) |
| Front brakes | Single disc. Optional drum brake |
| Rear tire | 3.50-19 |
| Front tire | 3.25-19 |
| Rear wheel travel | 120 mm (4.7 inches) |
| Rear Suspension | Swing arm |
| Front wheel travel | 150 mm (5.9 inches) |
| Front Suspension | Telescopi fork |
| Rake (fork angle) | 25.0° |
| Frame type | Steel tube |
| | |
Physical measures and capacities | |
| Fuel capacity | 13.50 litres (3.57 US gallons) |
| Wheelbase | 1410 mm (55.5 inches) |
| Seat height | 760 mm (29.9 inches) If adjustable, lowest setting. |
| Power/weight ratio | 0.0727 HP/kg |
| Weight incl. oil, gas, etc | 180.0 kg (396.8 pounds) |
| Dry weight | 165.0 kg (363.8 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Comments | Modified Royal Enfield bike without any electronics. Diesel or Biodiesel fuel. Sommer is a German brand. |
| Factory warranty | 2 year factory warranty |
| Electrical | Iskra 1 kW starter. Alternator 200W. |
| Instruments | Analogue instruments |
| Starter | Electric |
| Color options | Black, red, light blue, blue |
Performance Profile & Rider Fit
12 hp
Peak Power
65.2 mph
Top Speed
Best For
Track2%
City30%
Cornering25%
Daily Riding35%
Touring20%
Passenger5%
Rider Profile
| Best For | This is a niche, low-power diesel oddity best suited to riders curious about mechanical novelty rather than performance, and beginners could handle its gentle power delivery easily. |
| Purpose | Built as a fuel-sipping, low-maintenance diesel curiosity based on a Royal Enfield-style chassis, it suits slow-paced utility riding, farm or estate use, and enthusiasts of unusual engineering over speed or sport. |
| Rider Fit | The low seat height, single-seat setup, and modest weight make it easy and unintimidating to handle at low speeds, though its limited power means no strain but also no thrill. |
| Character | It has a quirky, agricultural charm with a thumping single-cylinder diesel heart, offering a slow, torquey, almost tractor-like riding experience rather than a sporty one. |
| Not Ideal For | This is not for riders wanting real-world highway speeds, quick acceleration, cornering agility, or two-up touring capability. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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Rider Reviews
Total comments: 1
MotorcycleDB Review
The 2019 Sommer Diesel 516 motorcycle is an impressive machine that offers a unique combination of power and efficiency. Its diesel engine provides excellent fuel economy, making it a great choice for long rides or everyday commuting. The 516 also boasts a sleek and modern design, with high-quality components and a comfortable riding position. The handling is responsive and precise, while the brakes provide ample stopping power. Overall, the 2019 Sommer Diesel 516 motorcycle is a standout option for riders looking for a reliable and efficient bike. If you're in the market for a new motorcycle, the 2019 Sommer Diesel 516 is definitely worth considering. Its diesel engine sets it apart from the competition, offering superior fuel economy and impressive performance. The sleek design and comfortable riding position make it a pleasure to ride, while the responsive handling and powerful brakes inspire confidence on the road. Whether you're a commuter or a long-distance rider, the 516 is a versatile and capable machine that is sure to impress.Add a Comment
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