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MotoLibrary Score
38/100Commuter
Power/Weight
0.13 hp/kg
Top Speed
101 km/h
Engine
124 ccm
Technical Overview
2023 Mash British Seven 125 Technical Analysis & Specification Breakdown
Engineered by Mash for the allround motorcycle segment, the 2023 Mash British Seven 125 pairs a 124 cc (7.6 cu in) liquid-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 14.8 HP (10.8 kW) at 9,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 119.4 HP per liter, the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the British Seven 125 measures 110 kg (243 lbs) dry, translating to a power-to-weight ratio of 0.13 HP/kg (7.43 kg per horsepower). Rider ergonomics and chassis geometry center around a 840 mm (33.1 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams. The 12-liter (3.2 US gal) fuel tank paired with a rated consumption of 2.1 L/100 km provides an estimated theoretical range of roughly 571 km (355 miles) between fill-ups, while factory top speed is listed at 101 km/h (63 mph).
Specific Output
119.4 HP/L
Power-to-Weight
0.13 HP/kg (7.43 kg/HP)
Theoretical Range
~571 km (355 mi)
Engine
Displacement124.0 ccm (7.57 cubic inches)
Engine TypeSingle cylinder, four-stroke
Power14.8 HP (10.8 kW)) @ 9000 RPM
Fuel SystemInjection. Delphi
IgnitionEletronic
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
Performance
Top Speed101.0 km/h (62.8 mph)
Fuel Consumption2.10 litres/100 km (47.6 km/l or 112.01 mpg)
Greenhouse Gases48.7 CO2 g/km. (CO2 - Carbon dioxide emission)
Emission DetailsEuro 5
Chassis
Front SuspensionTelescopic fork, 37 mm
Rear SuspensionDual shock
Wheels & Brakes
Front Tyre110/70-17
Rear Tyre130/70-17
Front BrakesSingle disc. 2-piston calipers
Front Brake Ø300 mm (11.8 inches)
Rear BrakesSingle disc
Rear Brake Ø210 mm (8.3 inches)
WheelsWire spoked
Dimensions & Weight
Dry Weight110.0 kg (242.5 pounds)
Power/Weight0.1341 HP/kg
Seat Height840 mm (33.1 inches) If adjustable, lowest setting.
Overall Height1115 mm (43.9 inches)
Overall Length1970 mm (77.6 inches)
Overall Width790 mm (31.1 inches)
Fuel Capacity12.00 litres (3.17 US gallons)
Other
StarterElectric
Color OptionsGreen, Matte black
InstrumentsAnalogue
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.
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.
