+ Add a photo

Naked Motorcycles

2018Yamaha YS125

Rate this bike

41 fields on record

The 2018 Yamaha YS125 is an accessible entry-level commuter designed for novice riders and urban users seeking reliable, fuel-efficient transportation. Its lightweight 129kg frame, compact 795mm seat height, and manageable 125cc engine make it ideal for learners navigating city streets. Known for affordability and low maintenance, this bike excels as a practical first motorcycle for budget-conscious riders.

Capacity: 125.0 ccm
Engine: Single, four-stroke
Gearbox: 5-speed
Wet weight: 129.0 kg
Seat height: 795 mm
Power: 10.5 HP (7.6 kW) @ 7500 RPM

⇄ Compare with another bike All model years

Other years 2018 2019 2020 2021

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail15%

Cornering55%

City riding88%

Daily riding82%

Touring30%

Two-up25%

Track10%

Best for: Built primarily for commuting and city riding rather than performance or long-distance travel.
Built for: A friendly, economical, and easy-going small-capacity bike that prioritizes practicality over excitement.
Not ideal for: Not suited for highway touring, carrying a passenger comfortably, or riders seeking strong acceleration.

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 795mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2018 Yamaha YS125, with a moderate knee angle of around 115 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: 125.0 ccm
Power: 10.5 HP (7.6 kW) @ 7500 RPM
Torque: 10.8 Nm (1.1 kgf-m) @ 6000 RPM
Engine type: Single, four-stroke
Power/weight ratio: 0.0814 HP/kg (wet)
Bore x stroke: 52.4 x 57.9 mm
Compression: 10.0:1
Cooling system: Air
Fuel system: Injection
Starting: Electric
Ignition: TCI
Valves per cylinder: 2
Lubrication system: Wet sump

Transmission

Gearbox: 5-speed
Transmission type: Manual
Final drive: Chain
Clutch: Wet, multiple-disc coil spring

Dimensions & weight

Wheelbase: 1320 mm
Overall length: 2005 mm
Overall width: 735 mm
Overall height: 1050 mm
Seat height: 795 mm
Wet weight: 129.0 kg
Fuel capacity: 14.00 litres
Ground clearance: 150 mm
Oil capacity: 1.20 litres
Dry weight: Not on record - add it

Chassis & suspension

Frame: Steel, diamond shaped
Front suspension: Telescopic forks
Rear suspension: Swingarm
Front wheel travel: 120 mm
Rear wheel travel: 105 mm
Rake (fork angle): 26.0°
Trail: 90 mm

Brakes & wheels

Front brakes: Single disc
Front brakes diameter: 245 mm
Rear brakes: Expanding brake (drum brake)
Rear brakes diameter: 130 mm
Front tyre: 2.75-18
Rear tyre: 100/80-18

Other

Color options: White, red, black

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	2018	2019	2020	2021
Capacity	125 cc	125 cc	125 cc	125 cc
Seat height	795 mm	795 mm	795 mm	795 mm
Fuel capacity	14 L	14 L	14 L	14 L

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

Rider Reviews

—

☆☆☆☆☆

Be the first to rate

MotorcycleDB Review

The 2018 Yamaha YS125 motorcycle is a reliable and affordable option for riders looking for a practical and stylish bike. With a 125cc engine, this motorcycle provides smooth acceleration and excellent fuel efficiency, making it perfect for city commutes or longer rides. The YS125 also features a comfortable seat, responsive brakes, and a sleek design that is sure to turn heads on the road. Whether you're a beginner rider or a seasoned pro, the Yamaha YS125 offers a great balance of performance, comfort, and affordability.

Overall, the 2018 Yamaha YS125 motorcycle is a great choice for anyone in the market for a dependable and stylish bike. With its efficient engine, comfortable seating, and attractive design, this motorcycle is a solid option for urban commuters and weekend riders alike. Whether you're navigating city streets or cruising along the open road, the YS125 provides a smooth and enjoyable ride that is sure to impress.