Sportbikes
2021Yamaha YZF-R125
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The 2021 Yamaha YZF-R125 is an entry-level sport bike designed for new and young riders seeking an affordable, nimble machine. Its 125cc single-cylinder engine delivers manageable power while maintaining the aggressive styling of Yamaha's YZF family. Known for reliability and ease of handling, it's ideal for learners progressing to sport riding.
- Capacity
- 124.7 ccm
- Engine
- Single, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 126.5 kg
- Seat height
- 825 mm
- Power
- 15.0 HP (10.9 kW) @ 9000 RPM
What’s new for the 2021 Yamaha YZF-R125
vs the 2020| Spec | 2020 | 2021 |
|---|---|---|
| Power | 14.7 HP (11.0 kW) @ 10000 RPM | 15.0 HP (10.9 kW) @ 9000 RPM |
| Torque | 12.4 Nm (1.3 kgf-m or 9.1 ft.lbs) @ 8000 RPM | 11.5 Nm (1.2 kgf-m or 8.5 ft.lbs) @ 8000 RPM |
| Wet weight | 142.0 kg (313.1 pounds) | 144.0 kg (317.5 pounds) |
| Front brakes | Single disc. Radial caliper with floating disc. | Single disc |
Other years
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built primarily for track riding and high-performance sport road use, with race-derived electronics and chassis geometry prioritizing outright speed and cornering precision.
- Built for
- A razor-sharp, race-bred superbike that rewards commitment and skill with explosive acceleration, crossplane-crank character, and pinpoint cornering ability.
- Not ideal for
- Not suitable for beginners, commuters seeking comfort, or riders wanting a relaxed upright touring or passenger-friendly experience.
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
- 124.7 ccm
- Power
- 15.0 HP (10.9 kW) @ 9000 RPM
- CO2 Emissions
- 49 CO2 g/km
- Torque
- 11.5 Nm (1.2 kgf-m) @ 8000 RPM
- Engine type
- Single, four-stroke
- Fuel consumption
- 2.10 litres/100 km (47.6 km/l)
- Power/weight ratio
- 0.1186 HP/kg (dry)
- 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
- Assist and Slipper clutch
Dimensions & weight
- Wheelbase
- 1355 mm
- Overall length
- 1935 mm
- Overall width
- 680 mm
- Overall height
- 1065 mm
- Seat height
- 825 mm
- Dry weight
- 126.5 kg
- Wet weight
- 144.0 kg
- Fuel capacity
- 11.50 litres
- Ground clearance
- 155 mm
- Oil capacity
- 1.20 litres
Chassis & suspension
- Frame
- Compact deltabox
- Front suspension
- Upside-down telescopic fork, Ø 41 mm
- Rear suspension
- Linked monoshock with spring preload adjustment
- Front wheel travel
- 130 mm
- Rear wheel travel
- 114 mm
- Rake (fork angle)
- 25.0°
- Trail
- 89 mm
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 292 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 230 mm
- Front tyre
- 100/80-17
- Rear tyre
- 140/70-17
Other
- Color options
- Tech Black, Icon Blue
- Comments
- Small windscreen.
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 | 2008 | 2013 | 2017 | 2021 | 2022 | 2026 |
|---|---|---|---|---|---|---|
| Capacity | 125 cc | 125 cc | 125 cc | 125 cc | 125 cc | 125 cc |
| Dry weight | 127 kg | 127 kg | 127 kg | 127 kg | 127 kg | 127 kg |
| Seat height | 818 mm | 818 mm | 818 mm | 825 mm | 825 mm | 820 mm |
| Fuel capacity | 13.8 L | 13.8 L | 11.5 L | 11.5 L | 11.5 L | 11 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 YZF-R125?
The 2021 Yamaha YZF-R125 has a Capacity of 124.7 ccm (7.61 cubic inches).
What engine power does the Yamaha YZF-R125 have?
The 2021 Yamaha YZF-R125 has a Power of 15.0 HP (10.9 kW) @ 9000 RPM.
How many gears does the Yamaha YZF-R125 have?
The 2021 Yamaha YZF-R125 has a Gearbox of 6-speed.
What is the torque of the Yamaha YZF-R125?
The 2021 Yamaha YZF-R125 has a Torque of 11.5 Nm (1.2 kgf-m or 8.5 ft.lbs) @ 8000 RPM.
How much does the Yamaha YZF-R125 weigh?
The 2021 Yamaha YZF-R125 has a Dry weight of 126.5 kg (278.9 pounds).
Shop this bike
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The 2021 Yamaha YZF-R125 is a sleek and powerful motorcycle that is perfect for both beginners and experienced riders. Its 125cc engine provides plenty of power for zipping around town or hitting the open road, while its lightweight design makes it nimble and easy to handle. The stylish and sporty look of the YZF-R125 is sure to turn heads, and its comfortable seating position makes it a joy to ride for extended periods of time. With responsive handling and impressive fuel efficiency, this bike is a top choice for anyone in the market for a new motorcycle.
Overall, the 2021 Yamaha YZF-R125 is a fantastic option for riders looking for a reliable and stylish motorcycle. Its powerful engine, lightweight design, and comfortable seating make it a joy to ride, while its sporty look is sure to make a statement on the road. Whether you're a beginner looking for your first bike or an experienced rider in search of a new thrill, the YZF-R125 is a top contender in the market.
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