14 August. Friday 2026
Sommer Diesel 516 - 2021 Specifications and Reviews
The 2021 Sommer Diesel 516 is an unconventional allround motorcycle powered by a Hatz 1B40 diesel engine, delivering 12 horsepower and impressive low-end torque. Best suited for budget-conscious riders seeking exceptional fuel economy and reliability over speed, this air-cooled single-cylinder machine excels in economical, long-distance commuting with its modest 99 km/h top speed and frugal consumption characteristics.
General information | |
| Category | Allround |
| Year | 2021 |
| 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 | 99.0 km/h (61.5 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 Hand-made in Germany. |
| 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
61.5 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 2021 Sommer Diesel 516 motorcycle is a powerhouse on the road, with its powerful 516cc diesel engine that provides exceptional torque and fuel efficiency. The sleek and modern design of the bike makes it a standout on the streets, while its comfortable riding position and smooth handling make it a joy to ride for long distances. Whether you're a seasoned rider or a beginner, the Sommer Diesel 516 is a top choice for those looking for a reliable and impressive motorcycle. With its cutting-edge technology and innovative features, the 2021 Sommer Diesel 516 motorcycle is a game-changer in the world of motorcycles. The advanced diesel engine not only delivers unparalleled performance, but also reduces emissions and saves on fuel costs. Additionally, the bike's high-quality construction and attention to detail make it a standout in its class. Overall, the Sommer Diesel 516 is an exceptional motorcycle that offers a combination of power, style, and efficiency that is hard to beat.Add a Comment
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