2012 Sommer Diesel 462 Technical Analysis & Specification Breakdown
Built around Sommer's allround motorcycle platform, the 2012 Sommer Diesel 462 features a 462 cc (28.2 cu in) air-cooled diesel configuration. In factory specification, peak output is rated at 11 HP (8 kW) at 3,500 rpm while maximum torque reaches 26.3 Nm (19.4 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 23.8 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 Diesel 462 measures 180 kg (397 lbs) dry, translating to a power-to-weight ratio of 0.06 HP/kg (16.36 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 1,400 mm (55.1 in) wheelbase engineered for quick, flickable steering geometry. The 13.5-liter (3.6 US gal) fuel tank paired with a rated consumption of 2.25 L/100 km provides an estimated theoretical range of roughly 600 km (373 miles) between fill-ups, while factory top speed is listed at 99 km/h (62 mph).
Within MotoLibrary's Sommer archive, this model family spans 7 indexed model years from 2008 to 2016, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
23.8 HP/L
Power-to-Weight
0.06 HP/kg (16.36 kg/HP)
Power Band Window
2,000–3,500 rpm
Theoretical Range
~600 km (373 mi)
Engine
Displacement462.0 ccm (28.19 cubic inches)
Engine TypeDiesel
Engine DetailsHatz 1B40 engine
Power11.0 HP (8.0 kW)) @ 3500 RPM
Torque26.3 Nm (2.7 kgf-m or 19.4 ft.lbs) @ 2000 RPM
Compression20.5:1
Bore x Stroke88.0 x 76.0 mm (3.5 x 3.0 inches)
Valves/Cylinder2
Fuel SystemInjection
CoolingAir
Max RPM4000
Transmission
Gearbox4-speed
Final DriveChain (final drive)
ClutchMulitiplate in oil bath
Performance
Top Speed99.0 km/h (61.5 mph)
Fuel Consumption2.25 litres/100 km (44.4 km/l or 104.54 mpg)
Greenhouse Gases52.2 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Frame TypeSteel tube
Rake25.0°
Front SuspensionTelescopi fork
Front Travel150 mm (5.9 inches)
Rear SuspensionSwing arm
Rear Travel120 mm (4.7 inches)
Wheelbase1400 mm (55.1 inches)
Wheels & Brakes
Front Tyre3.25-19
Rear Tyre3.50-19
Front BrakesSingle disc. Optional drum brake
Front Brake Ø177 mm (7.0 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Ø152 mm (6.0 inches)
Dimensions & Weight
Dry Weight180.0 kg (396.8 pounds)
Power/Weight0.0611 HP/kg
Seat Height760 mm (29.9 inches) If adjustable, lowest setting.
Fuel Capacity13.50 litres (3.57 US gallons)
Other
StarterElectric
Color OptionsBlack, red, silver, yellow, blue
ElectricalIskra 1 kW starter. Alternator 200W.
Warranty2 year factory warranty
Notes
Modified Royal Enfield bike. Sommer is a Germnan brand.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
