Sportbikes
2025Yamaha YZF-R125
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The 2025 Yamaha YZF-R125 is a race-styled learner sports bike modelled on Yamaha's bigger R-series machines. Its liquid-cooled 124.7cc single makes 15 hp at 10,000 rpm and 11.5 Nm through a six-speed gearbox. An 825 mm seat, 144 kg wet weight, small windscreen and 11.5-litre tank complete it.
- 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) @ 10000 RPM
What’s new for the 2025 Yamaha YZF-R125
vs the 2024| Spec | 2024 | 2025 |
|---|---|---|
| Power | 14.8 HP (10.8 kW) @ 10000 RPM | 15.0 HP (10.9 kW) @ 10000 RPM |
| Fuel capacity | 11.00 litres (2.91 US gallons) | 11.50 litres (3.04 US gallons) |
| Front suspension | KYB Upside-down telescopic fork, 41 mm | Upside-down telescopic fork, Ø 41 mm |
| Rear suspension | Swingarm, link-type | Linked monoshock with spring preload adjustment |
| Wheelbase | 1325 mm (52.2 inches) | 1355 mm (53.3 inches) |
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) @ 10000 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
- 220 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 | 2022 | 2025 | 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 2025 Yamaha YZF-R125 has a Capacity of 124.7 ccm (7.61 cubic inches).
What engine power does the Yamaha YZF-R125 have?
The 2025 Yamaha YZF-R125 has a Power of 15.0 HP (10.9 kW) @ 10000 RPM.
How many gears does the Yamaha YZF-R125 have?
The 2025 Yamaha YZF-R125 has a Gearbox of 6-speed.
What is the torque of the Yamaha YZF-R125?
The 2025 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 2025 Yamaha YZF-R125 has a Dry weight of 126.5 kg (278.9 pounds).
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