2023 Mash Six Hundred 650 Technical Analysis & Specification Breakdown
At the heart of the 2023 Mash Six Hundred 650 sport motorcycle, Mash utilizes a 643.7 cc (39.3 cu in) oil & air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 38.9 HP (28.4 kW) at 6,000 rpm while maximum torque reaches 46 Nm (33.9 lb-ft) at 4,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 60.4 HP per liter and a 1,500 rpm working window between peak torque (4,500 rpm) and peak power (6,000 rpm), the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the Six Hundred 650 measures 181 kg (399 lbs) dry, translating to a power-to-weight ratio of 0.21 HP/kg (4.65 kg per horsepower). Rider ergonomics and chassis geometry center around a 830 mm (32.7 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams. The 13-liter (3.4 US gal) fuel tank paired with a rated consumption of 4.2 L/100 km provides an estimated theoretical range of roughly 310 km (193 miles) between fill-ups, while factory top speed is listed at 150 km/h (93 mph).
Within MotoLibrary's Mash archive, this model family spans 2 indexed model years from 2023 to 2024, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
60.4 HP/L
Power-to-Weight
0.21 HP/kg (4.65 kg/HP)
Power Band Window
4,500–6,000 rpm
Theoretical Range
~310 km (193 mi)
Engine
Displacement643.7 ccm (39.28 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power38.9 HP (28.4 kW)) @ 6000 RPM
Torque46.0 Nm (4.7 kgf-m or 33.9 ft.lbs) @ 4500 RPM
Compression8.8:1
Bore x Stroke100.0 x 82.0 mm (3.9 x 3.2 inches)
Valves/Cylinder4
Fuel SystemInjection. Delphi
Fuel ControlSingle Overhead Cams (SOHC)
CoolingOil & air
Transmission
Gearbox5-speed
Final DriveChain (final drive)
Performance
Top Speed150.0 km/h (93.2 mph)
Fuel Consumption4.20 litres/100 km (23.8 km/l or 56.00 mpg)
Greenhouse Gases97.4 CO2 g/km. (CO2 - Carbon dioxide emission)
Emission DetailsEuro 5
Chassis
Front SuspensionInverted fork, 41 mm
Rear SuspensionMonoshock
Wheels & Brakes
Front Tyre100/90-19
Rear Tyre130/70-18
Front BrakesSingle disc. ABS. 4-piston.
Front Brake Ø320 mm (12.6 inches)
Rear BrakesSingle disc. ABS. 2-piston
Rear Brake Ø240 mm (9.4 inches)
WheelsWire spoked.
Dimensions & Weight
Dry Weight181.0 kg (399.0 pounds)
Power/Weight0.2149 HP/kg
Seat Height830 mm (32.7 inches) If adjustable, lowest setting.
Overall Height1170 mm (46.1 inches)
Overall Length2110 mm (83.1 inches)
Overall Width780 mm (30.7 inches)
Fuel Capacity13.00 litres (3.43 US gallons)
Other
StarterElectric
Color OptionsIrish Green, Night Blue
LightLED headlight
Warranty2 years spare parts and labour, Unlimited mileage.
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.
