Motocross Bikes
2014Yamaha YZ125
39 fields on record
The 2014 Yamaha YZ125 is a lightweight, entry-level motocross bike ideal for younger riders and beginners transitioning to competitive racing. Known for its responsive two-stroke engine and nimble handling, this machine delivers excellent acceleration and maneuverability on closed circuits. The liquid-cooled powerplant and aluminum frame make it a dependable choice for amateur motocross competition.
- Capacity
- 124.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 86.2 kg
- Seat height
- 998 mm
- Power
- Not on record
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Other years
2002
2003
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2014
2015
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2020
2021
2022
2023
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2026
2027
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely for motocross racing and aggressive trail riding, not for commuting, road use, or casual leisure riding.
- Built for
- A raw, high-revving 2-stroke racer that rewards precise clutch and throttle control with explosive acceleration and razor-sharp handling on dirt.
- Not ideal for
- Not for beginners, road riders, passengers, or anyone wanting comfort, storage, or long-distance capability.
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 usEngine
- Capacity
- 124.0 ccm
- Engine type
- Single, two-stroke
- Bore x stroke
- 54.0 x 54.5 mm
- Compression
- 8.6:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Electric
- Ignition
- CDI
- Lubrication system
- Wet sump
- Power
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Multiplate, wet
Dimensions & weight
- Wheelbase
- 1443 mm
- Overall length
- 2136 mm
- Overall width
- 828 mm
- Overall height
- 1316 mm
- Seat height
- 998 mm
- Dry weight
- 86.2 kg
- Wet weight
- 93.9 kg
- Fuel capacity
- 8.00 litres
- Ground clearance
- 386 mm
- Oil capacity
- 0.70 litres
Chassis & suspension
- Frame
- Aluminum
- Front suspension
- Speed-sensitive system inverted fork
- Rear suspension
- Fully adjustable single shock
- Front wheel travel
- 300 mm
- Rear wheel travel
- 315 mm
- Rake (fork angle)
- 28.0°
- Trail
- 109 mm
Brakes & wheels
- Front brakes
- Single disc. Hydraulic disc. Hydraulic disc.
- Front brakes diameter
- 250 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 245 mm
- Front tyre
- 80/100-21
- Rear tyre
- 100/90-19
Other
- Color options
- Team Yamaha Blue/White
- Comments
- Premium drive chain has gold-colored plates for outstanding looks.
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 | 2002 | 2008 | 2014 | 2015 | 2021 | 2027 |
|---|---|---|---|---|---|---|
| Capacity | 124 cc | 124 cc | 124 cc | 125 cc | 125 cc | 125 cc |
| Dry weight | 88 kg | 86 kg | 86 kg | 86 kg | 86 kg | 86 kg |
| Seat height | 994 mm | 998 mm | 998 mm | 975 mm | 975 mm | 980 mm |
| Fuel capacity | 7.9 L | 7.9 L | 8 L | 8 L | 8 L | 6.8 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 YZ125?
The 2014 Yamaha YZ125 has a Capacity of 124.0 ccm (7.57 cubic inches).
How many gears does the Yamaha YZ125 have?
The 2014 Yamaha YZ125 has a Gearbox of 6-speed.
How much does the Yamaha YZ125 weigh?
The 2014 Yamaha YZ125 has a Dry weight of 86.2 kg (190.0 pounds).
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