2024 Mash Six Hundred 650 Technical Analysis & Specification Breakdown
Positioned in Mash's classic motorcycle lineup, the 2024 Mash Six Hundred 650 features a 644 cc (39.3 cu in) air-cooled single cylinder, four-stroke configuration. In factory specification, peak output is rated at 39.2 HP (28.6 kW) at 6,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 60.9 HP per liter, 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 0.22 HP/kg (4.62 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
60.9 HP/L
Power-to-Weight
0.22 HP/kg (4.62 kg/HP)
Theoretical Range
~310 km (193 mi)
Engine
Displacement644.0 ccm (39.30 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsAtmospheric intake-side exhaust
Power39.2 HP (28.6 kW)) @ 6000 RPM
Valves/Cylinder4
Fuel SystemCarburettor. Marsh
IgnitionTotal loss system- no generator to recharge the battery
CoolingAir
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 forks, 41mm
Rear SuspensionTwin shocks
Wheels & Brakes
Front Tyre100/90-19
Rear Tyre130/70-18
Front BrakesSingle disc. 4-piston caliper
Front Brake Ø320 mm (12.6 inches)
Rear BrakesSingle disc. 2-piston caliper
Rear Brake Ø240 mm (9.4 inches)
WheelsStainless steel spoked rims
Dimensions & Weight
Dry Weight181.0 kg (399.0 pounds)
Power/Weight0.2166 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 lights
Warranty3 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.
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.
