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Naked Motorcycles

2018Yamaha MT-125

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The Yamaha MT-125 is a lightweight naked bike tailored for beginner riders and urban commuters seeking an accessible entry point into motorcycling. Known for its manageable 140 kg weight, low 810 mm seat height, and compact 11.5-litre fuel tank, it excels in city navigation and everyday practicality. Its liquid-cooled engine and electric starter deliver reliable daily performance for new riders building confidence and skill.

Capacity: 124.7 ccm
Engine: Single single, four-stroke
Gearbox: 6-speed
Wet weight: 140.0 kg
Seat height: 810 mm
Power: 15.0 HP (10.9 kW) @ 9000 RPM

⇄ Compare with another bike All model years

What’s new for the 2018 Yamaha MT-125

vs the 2017

Spec	2017	2018
Engine capacity	124.70 ccm (7.61 cubic inches)	124.7 ccm (7.61 cubic inches)
Power	15.00 HP (10.9 kW) @ 9000 RPM	15.0 HP (10.9 kW) @ 9000 RPM
Torque	12.40 Nm (1.3 kgf-m or 9.1 ft.lbs) @ 6900 RPM	12.4 Nm (1.3 kgf-m or 9.1 ft.lbs) @ 6900 RPM
Weight	138.0 kg (304.2 pounds)	140.0 kg (308.6 pounds)
Fuel capacity	11.50 litres (3.04 gallons)	11.50 litres (3.04 US gallons)
Wheelbase	1,355 mm (53.3 inches)	1355 mm (53.3 inches)

Other years 2015 2016 2017 2018 2019 2021 2022 2023

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail15%

Cornering68%

City riding90%

Daily riding80%

Touring25%

Two-up35%

Track20%

Best for: Built primarily for commuting and urban riding, with light-hearted weekend fun as a bonus rather than a main use case.
Built for: A friendly, nimble naked bike with sporty MT styling that feels eager and modern despite its modest single-cylinder output.
Not ideal for: Not suited for highway touring, carrying a passenger long distances, or riders wanting strong overtaking power at speed.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

Worked out in your browser - nothing is sent to us

Your height

Inseam (optional)

Units

At 810mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2018 Yamaha MT-125, with a relaxed knee angle of around 120 degrees and a forward-leaning riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

Find bikes that fit your height →

Full specifications

Engine

Capacity: 124.7 ccm
Power: 15.0 HP (10.9 kW) @ 9000 RPM
CO2 Emissions: 49 CO2 g/km
Torque: 12.4 Nm (1.3 kgf-m) @ 6900 RPM
Engine type: Single single, four-stroke
Fuel consumption: 2.10 litres/100 km (47.6 km/l)
Power/weight ratio: 0.1071 HP/kg
Bore x stroke: 52.0 x 58.6 mm
Compression: 11.2:1
Cooling system: Liquid
Fuel system: Injection
Starting: Electric
Ignition: TCI
Valves per cylinder: 4
Lubrication system: Wet sump

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Chain
Clutch: Wet, multiple-disc coil spring

Dimensions & weight

Wheelbase: 1355 mm
Overall length: 1955 mm
Overall width: 740 mm
Overall height: 1040 mm
Seat height: 810 mm
Wet weight: 140.0 kg
Fuel capacity: 11.50 litres
Ground clearance: 140 mm
Oil capacity: 1.20 litres
Dry weight: Not on record - add it

Chassis & suspension

Frame: Steel Deltabox
Front suspension: Upside-down telescopic fork, 41 mm
Rear suspension: Linked monoshock with spring preload adjustment
Front wheel travel: 137 mm
Rear wheel travel: 130 mm
Rake (fork angle): 25.0°
Trail: 89 mm

Brakes & wheels

Front brakes: Single disc. Optional ABS.
Front brakes diameter: 292 mm
Rear brakes: Single disc. Optional ABS.
Rear brakes diameter: 230 mm
Front tyre: 100/80-M17
Rear tyre: 130/70-M17

Other

Color options: Night Fluo, Black, Blue

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted

Specification	2015	2017	2018	2019	2021	2023
Capacity	124.70 ccm (7.61 cubic inches)	124.70 ccm (7.61 cubic inches)	124.70 ccm (7.61 cubic inches)	124.7 ccm (7.61 cubic inches)	124.7 ccm (7.61 cubic inches)	124.7 ccm (7.61 cubic inches)
Seat height	810 mm (31.9 inches)	810 mm (31.9 inches)	810 mm (31.9 inches)	810 mm (31.9 inches)	810 mm (31.9 inches)	810 mm (31.9 inches)
Fuel capacity	11.50 litres (3.04 gallons)	11.50 litres (3.04 gallons)	11.50 litres (3.04 gallons)	11.50 litres (3.04 US gallons)	10.00 litres (2.64 US gallons)	11.00 litres (2.91 US gallons)
Color options	Red, grey, blue	Silver, black, blue	Night Fluo, Black, Blue	Tech Black, Ice Fluo	Tech Black, Ice Fluo, Icon Blue	Tech Black, Cyan Storm, Icon Blue

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

Rider Reviews

4.0

★★★★☆

2 ratings

MotorcycleDB Review

The 2018 Yamaha MT-125 is a sleek and powerful motorcycle that delivers a thrilling riding experience. With its 125cc engine, this bike offers impressive performance and quick acceleration, making it a great choice for urban commuting and weekend rides. The MT-125 also boasts a stylish and modern design, with a comfortable riding position and responsive handling. Whether you're a beginner rider or a seasoned enthusiast, the 2018 Yamaha MT-125 is sure to impress with its blend of performance and style.

In addition to its impressive performance, the 2018 Yamaha MT-125 also comes equipped with advanced features such as ABS brakes and LED lighting, enhancing both safety and visibility. The bike's compact size and lightweight build make it a nimble and agile choice for navigating city streets and urban environments. Overall, the 2018 Yamaha MT-125 is a standout option in the 125cc motorcycle category, offering a winning combination of power, style, and advanced features that are sure to appeal to riders of all levels.