Yamaha MT-125 - 2015 Specifications and Reviews

The 2015 Yamaha MT-125 is an accessible naked bike designed for new riders and commuters seeking a lightweight, agile machine. Its compact dimensions, low 810mm seat height, and nimble handling make it ideal for urban navigation and learning fundamental riding skills. Known for its reliability and fuel efficiency, the MT-125 delivers a practical platform for everyday riding without unnecessary complexity.

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General information

CategoryNaked bike
Year2015
ModelYamaha MT-125

Engine and Transmission Specifications

ClutchWet, multiple-disc coil spring
Transmission type,final driveChain
Gearbox6-speed
Cooling systemLiquid
Lubrication systemWet sump
IgnitionTCI
Fuel controlSingle Overhead Cams (SOHC)
Fuel systemInjection
Valves per cylinder4
Bore x Stroke52.0 x 58.6 mm (2.0 x 2.3 inches)
Compression11.2:1
Torque12.40 Nm (1.3 kgf-m or 9.1 ft.lbs) @ 6900 RPM
Power14.75 HP (10.8 kW) @ 9000 RPM
Engine typeSingle cylinder, four-stroke
Capacity:124.70 ccm (7.61 cubic inches)
 
 

Brakes, suspension, Frame and wheels

WheelsY-spoke wheels
Rear brakes diameter230 mm (9.1 inches)
Rear brakesSingle disc
Front brakes diameter292 mm (11.5 inches)
Front brakesSingle disc
Rear tyre130/70-M17
Front tyre100/80-M17
Rear wheel travel130 mm (5.1 inches)
Rear SuspensionLinked monoshock with spring preload adjustment
Front wheel travel137 mm (5.4 inches)
Front SuspensionUpside-down telescopic fork, 41 mm
Trail89 mm (3.5 inches)
Rake (fork angle)25.0°
Frame typeSteel Deltabox

Physical measures and capacities

Oil capacity1.20 litres (0.08 quarts)
Fuel capacity11.50 litres (3.04 gallons)
Wheelbase1,355 mm (53.3 inches)
Ground clearance140 mm (5.5 inches)
Overall width740 mm (29.1 inches)
Overall length1,955 mm (77.0 inches)
Overall height1,040 mm (40.9 inches)
Seat height810 mm (31.9 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc138.0 kg (304.2 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
InstrumentsDigital LED
StarterElectric
Color optionsRed, grey, blue

Performance Profile & Rider Fit

14.8 hp
Peak Power
12.5s
0-60 mph

Best For

Track20%
City90%
Cornering68%
Daily Riding80%
Touring25%
Passenger35%

Rider Profile

Best ForIdeal for beginners, learner-permit riders, or anyone on an A1/125cc license looking for a manageable first bike.
PurposeBuilt primarily for commuting and urban riding, with light-hearted weekend fun as a bonus rather than a main use case.
Rider FitIts low seat height and light 142 kg weight make it very accessible for shorter or less experienced riders to handle confidently.
CharacterA friendly, nimble naked bike with sporty MT styling that feels eager and modern despite its modest single-cylinder output.
Not Ideal ForNot suited for highway touring, carrying a passenger long distances, or riders wanting strong overtaking power at speed.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2015 Yamaha MT-125 Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 810mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2015 Yamaha MT-125, with a relaxed knee angle of around 120 degrees and a forward-leaning riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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