Naked Motorcycles
2021Yamaha YS125
42 fields on record
The 2021 Yamaha YS125 is an air-cooled, two-stroke commuter designed for entry-level and budget-conscious riders seeking reliable everyday transportation. Its 125cc single-cylinder engine delivers modest power output suitable for city riding and light highway use. Known for simplicity, fuel efficiency, and affordability, it excels as an accessible first motorcycle or practical utility bike.
- Capacity
- 125.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 6-speed
- Wet weight
- 129.0 kg
- Seat height
- 795 mm
- Power
- 10.5 HP (7.6 kW) @ 7500 RPM
How it rides
Editorial estimate from the spec sheet - not lab tested- 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 usRange and running costs
Worked out in your browser - nothing is sent to usBased on the maker's published fuel consumption and tank size. Real-world figures depend on how and where you ride, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.
Engine
- Capacity
- 125.0 ccm
- Power
- 10.5 HP (7.6 kW) @ 7500 RPM
- CO2 Emissions
- 46 CO2 g/km
- Torque
- 10.8 Nm (1.1 kgf-m) @ 6000 RPM
- Engine type
- Single, four-stroke
- Fuel consumption
- 2.00 litres/100 km (50.0 km/l)
- Power/weight ratio
- 0.0814 HP/kg (wet)
- Bore x stroke
- 54.4 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
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
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 fork
- Rear suspension
- Swing arm
- Front wheel travel
- 120 mm
- Rear wheel travel
- 112 mm
- Rake (fork angle)
- 26.8°
- Trail
- 117 mm
Brakes & wheels
- Front brakes
- Single disc. Hydraulic.
- Front brakes diameter
- 245 mm
- Rear brakes
- Expanding brake (drum brake). Hydraulic.
- Rear brakes diameter
- 130 mm
- Front tyre
- 2.75-18
- Rear tyre
- 100/80-18
Other
- Color options
- Power red, Competition White, Midnight Black
Specs last verified against published sources: .
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
Common questions
What is the engine size of the Yamaha YS125?
The 2021 Yamaha YS125 has a Capacity of 125.0 ccm (7.63 cubic inches).
What engine power does the Yamaha YS125 have?
The 2021 Yamaha YS125 has a Power of 10.5 HP (7.6 kW) @ 7500 RPM.
How many gears does the Yamaha YS125 have?
The 2021 Yamaha YS125 has a Gearbox of 6-speed.
What is the torque of the Yamaha YS125?
The 2021 Yamaha YS125 has a Torque of 10.8 Nm (1.1 kgf-m or 8.0 ft.lbs) @ 6000 RPM.
How much does the Yamaha YS125 weigh?
The 2021 Yamaha YS125 has a Wet weight of 129.0 kg (284.4 pounds).
Shop this bike
Affiliate linksWe may earn a commission from qualifying eBay or Amazon purchases made through these links. As an Amazon Associate I earn from qualifying purchases.
The 2021 Yamaha YS125 is a stylish and compact motorcycle that delivers exceptional performance and fuel efficiency. With a sleek and modern design, this bike is perfect for urban commuters and first-time riders. The YS125 is equipped with a responsive 125cc engine that provides smooth acceleration and makes for an enjoyable riding experience. Additionally, its lightweight and agile handling make it easy to maneuver through city streets and traffic.
Yamaha has also incorporated advanced safety features into the YS125, including a reliable braking system and responsive suspension, ensuring a secure and stable ride. Furthermore, the motorcycle's fuel-efficient engine makes it an economical choice for daily commuting. Overall, the 2021 Yamaha YS125 is a practical and reliable motorcycle that offers great value for riders looking for a stylish and efficient urban commuter.
Please log in or register if you'd like to leave a comment.
Own one? Add it to My Garage and write an owner review with an Owner badge.