2012 Yamaha X-Max 125 Sport Technical Analysis & Specification Breakdown
Built around Yamaha's scooter motorcycle platform, the 2012 Yamaha X-Max 125 Sport pairs a 124.7 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 HP (10.2 kW) while maximum torque reaches 11.3 Nm (8.4 lb-ft) at 8,750 rpm, transferring power to the rear wheel through a automatic gearbox and belt final drive. With a specific output of 112.3 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 X-Max 125 Sport measures 173 kg (381 lbs) wet (curb), translating to a power-to-weight ratio of 0.08 HP/kg (12.36 kg per horsepower). Rider ergonomics and chassis geometry center around a 792 mm (31.2 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,545 mm (60.8 in) wheelbase engineered for planted straight-line stability. The 12-liter (3.2 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Yamaha archive, this model family spans 2 indexed model years from 2011 to 2012, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
112.3 HP/L
Power-to-Weight
0.08 HP/kg (12.36 kg/HP)
Standover Height
792 mm (31.2 in)
Engine
Displacement124.7 ccm (7.61 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power14.0 HP (10.2 kW))
Torque11.3 Nm (1.2 kgf-m or 8.4 ft.lbs) @ 8750 RPM
Compression11.2:1
Bore x Stroke52.0 x 58.6 mm (2.0 x 2.3 inches)
Fuel SystemInjection
Fuel ControlSingle Overhead Cams (SOHC)
LubricationWet sump
CoolingLiquid
Transmission
GearboxAutomatic
Final DriveBelt (final drive)
DrivelineV-Belt Automatic
Chassis
Front SuspensionTelescopic fork
Front Travel110 mm (4.3 inches)
Rear SuspensionUnit Swing
Wheelbase1545 mm (60.8 inches)
Ground Clearance135 mm (5.3 inches)
Wheels & Brakes
Front Tyre120/70-15
Rear Tyre140/70-14
Front BrakesSingle disc
Front Brake Ø267 mm (10.5 inches)
Rear BrakesSingle disc
Rear Brake Ø240 mm (9.4 inches)
Dimensions & Weight
Weight incl.173.0 kg (381.4 pounds)
Seat Height792 mm (31.2 inches) If adjustable, lowest setting.
Overall Height1337 mm (52.6 inches)
Overall Length2200 mm (86.6 inches)
Overall Width776 mm (30.6 inches)
Fuel Capacity12.00 litres (3.17 US gallons)
Other
StarterElectric
Color OptionsTech Armor Gray
Carrying CapacityUnderseat storage for 2 full-face helmets. Large glove compartment
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.
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.
