Motocross Bikes
2007Yamaha YZ 125
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The 2007 Yamaha YZ 125 is a lightweight motocross bike designed for amateur and intermediate riders entering competitive racing. Its liquid-cooled single-cylinder engine delivers nimble handling and manageable power, making it ideal for developing riding skills on the track. The bike is best known for its reliability and affordability in the 125cc motocross class.
- Capacity
- 124.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 86.2 kg
- Seat height
- 998 mm
- Power
- 15.0 HP (11.0 kW)
What’s new for the 2007 Yamaha YZ 125
vs the 2006| Spec | 2006 | 2007 |
|---|---|---|
| Dry weight | 86.0 kg (189.6 pounds) | 86.2 kg (190.0 pounds) |
| Wet weight | — | 94.3 kg (207.9 pounds) |
| Fuel capacity | 8.00 litres (2.11 US gallons) | 7.90 litres (2.09 US gallons) |
| Gearbox | 5-speed | 6-speed |
| Front suspension | Telescopic fork | Telescopic Fork, coil spring/oil damper, 11.8´ |
| Rear suspension | Swinging arm (link-type monocross) | Swingarm (link, suspension), coil spring/gas-oil damper, 12.4´ |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely for motocross track racing and aggressive off-road riding, not for general transportation.
- Built for
- A high-strung, peaky, and razor-sharp machine that thrives on revs and rewards precise throttle and clutch control with explosive acceleration out of corners.
- Not ideal for
- This bike is not for beginners, commuters, passengers, or anyone seeking comfort, storage, or road-legal touring 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
- Power
- 15.0 HP (11.0 kW)
- Engine type
- Single, two-stroke
- Power/weight ratio
- 0.1740 HP/kg
- Bore x stroke
- 54.0 x 54.5 mm
- Compression
- 8.6:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Electric
- Ignition
- CDI
- Valves per cylinder
- 1
- Lubrication system
- Dry sump
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
- 94.3 kg
- Fuel capacity
- 7.90 litres
- Ground clearance
- 386 mm
- Oil capacity
- 0.70 litres
Chassis & suspension
- Frame
- Fron
- Front suspension
- Telescopic Fork, coil spring/oil damper, 11.8´
- Rear suspension
- Swingarm (link, suspension), coil spring/gas-oil damper, 12.4´
- Front wheel travel
- 300 mm
- Rear wheel travel
- 315 mm
- Rake (fork angle)
- 26.6°
- Trail
- 109 mm
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 250 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 245 mm
- Front tyre
- 80/80-M21
- Rear tyre
- 100/90-M19
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 | 2003 | 2005 | 2006 | 2007 |
|---|---|---|---|---|---|
| Capacity | 124.00 ccm (7.57 cubic inches) | 124.00 ccm (7.57 cubic inches) | 124.00 ccm (7.57 cubic inches) | 124.00 ccm (7.57 cubic inches) | 124.00 ccm (7.57 cubic inches) |
| Dry weight | 87.5 kg (192.9 pounds) | 87.5 kg (192.9 pounds) | — | 86.0 kg (189.6 pounds) | 86.2 kg (190.0 pounds) |
| Seat height | 994 mm (39.1 inches) | 994 mm (39.1 inches) | 993 mm (39.1 inches) | 998 mm (39.3 inches) | 998 mm (39.3 inches) |
| Fuel capacity | — | — | 7.94 litres (2.10 gallons) | 8.00 litres (2.11 gallons) | 7.94 litres (2.10 gallons) |
| Color options | — | — | Team Yamaha Blue/White | — | — |
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 YZ 125?
The 2007 Yamaha YZ 125 has a Capacity of 124.0 ccm (7.57 cubic inches).
What engine power does the Yamaha YZ 125 have?
The 2007 Yamaha YZ 125 has a Power of 15.0 HP (11.0 kW).
How many gears does the Yamaha YZ 125 have?
The 2007 Yamaha YZ 125 has a Gearbox of 6-speed.
How much does the Yamaha YZ 125 weigh?
The 2007 Yamaha YZ 125 has a Dry weight of 86.2 kg (190.0 pounds).
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