Positioned in Sachs's scooter motorcycle lineup, the 2012 Sachs MadAss 125 utilizes a 119.7 cc (7.3 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 8.1 HP (5.9 kW) at 8,400 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 67.7 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 MadAss 125 measures 105 kg (231 lbs) dry, translating to a power-to-weight ratio of 0.08 HP/kg (12.96 kg per horsepower). Rider ergonomics and chassis geometry center around a 855 mm (33.7 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,235 mm (48.6 in) wheelbase engineered for quick, flickable steering geometry. The 5-liter (1.3 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 90 km/h (56 mph).
Within MotoLibrary's Sachs archive, this model family spans 6 indexed model years from 2007 to 2016, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
67.7 HP/L
Power-to-Weight
0.08 HP/kg (12.96 kg/HP)
Standover Height
855 mm (33.7 in)
Engine
Displacement119.7 ccm (7.30 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power8.1 HP (5.9 kW)) @ 8400 RPM
Fuel SystemCarburettor
IgnitionCDI
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
Performance
Top Speed90.0 km/h (55.9 mph)
Emission DetailsCatalyzed
Chassis
Frame TypeSteel tubes
Front SuspensionTelescopic fork
Wheelbase1235 mm (48.6 inches)
Wheels & Brakes
Front Tyre90/80-16
Rear Tyre90/80-16
Front BrakesDouble disc
Front Brake Ø260 mm (10.2 inches)
Rear BrakesSingle disc
Rear Brake Ø215 mm (8.5 inches)
WheelsBlack 3-spoke wheels
Dimensions & Weight
Dry Weight105.0 kg (231.5 pounds)
Power/Weight0.0767 HP/kg
Seat Height855 mm (33.7 inches) If adjustable, lowest setting.
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.
