Motocross Bikes
2002Yamaha TT-R 125 LW
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The 2002 Yamaha TT-R 125 LW is an entry-level motocross bike designed for young riders and beginners seeking their first off-road experience. Its compact 123cc air-cooled engine delivers modest power suited to developing fundamental skills, while the lightweight 78kg chassis and low 805mm seat height ensure accessibility and confidence-building handling characteristics.
- Capacity
- 123.7 ccm
- Engine
- Single
- Gearbox
- 5-speed
- Dry weight
- 78.0 kg
- Seat height
- 805 mm
- Power
- 9.8 HP (7.2 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for light trail riding, dirt tracks, and learning fundamentals rather than speed or long distances.
- Built for
- A gentle, forgiving small-bore trail bike with modest power delivery and nimble, playful handling.
- Not ideal for
- Not suited for highway travel, carrying passengers, or riders seeking real speed and touring range.
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
- 123.7 ccm
- Power
- 9.8 HP (7.2 kW)
- Torque
- 9.9 Nm (1.0 kgf-m)
- Engine type
- Single
- Power/weight ratio
- 0.1256 HP/kg (dry)
- Bore x stroke
- 54.0 x 54.0 mm
- Compression
- 10.0:1
- Cooling system
- Air
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- CDI
- Lubrication system
- Premix
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet, multiple-disc coil spring
Dimensions & weight
- Wheelbase
- 1270 mm
- Overall length
- 1885 mm
- Overall width
- 795 mm
- Overall height
- 1085 mm
- Seat height
- 805 mm
- Dry weight
- 78.0 kg
- Wet weight
- 84.0 kg
- Fuel capacity
- 8.00 litres
- Ground clearance
- 295 mm
- Oil capacity
- 1.20 litres
Chassis & suspension
- Frame
- Diamond shaped
- Front suspension
- Telescopic fork
- Rear suspension
- Swinging arm (monocross)
- Front wheel travel
- 180 mm
- Rear wheel travel
- 168 mm
- Trail
- 107 mm
Brakes & wheels
- Front brakes
- Expanding brake
- Front brakes diameter
- 220 mm
- Rear brakes
- Expanding brake
- Rear brakes diameter
- 110 mm
- Front tyre
- 70/100-19
- Rear tyre
- 90/100-15
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 | 2004 | 2005 | 2007 |
|---|---|---|---|---|---|
| Capacity | 124 cc | 124 cc | 124 cc | 124 cc | 124 cc |
| Dry weight | 78 kg | 78 kg | 78 kg | 78 kg | 78 kg |
| Seat height | 805 mm | 805 mm | 805 mm | 805 mm | 775 mm |
| Fuel capacity | 8 L | 8 L | 8 L | 8 L | 6.6 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 TT-R 125 LW?
The 2002 Yamaha TT-R 125 LW has a Capacity of 123.7 ccm (7.55 cubic inches).
What engine power does the Yamaha TT-R 125 LW have?
The 2002 Yamaha TT-R 125 LW has a Power of 9.8 HP (7.2 kW).
How many gears does the Yamaha TT-R 125 LW have?
The 2002 Yamaha TT-R 125 LW has a Gearbox of 5-speed.
What is the torque of the Yamaha TT-R 125 LW?
The 2002 Yamaha TT-R 125 LW has a Torque of 9.9 Nm (1.0 kgf-m or 7.3 ft.lbs).
How much does the Yamaha TT-R 125 LW weigh?
The 2002 Yamaha TT-R 125 LW has a Dry weight of 78.0 kg (172.0 pounds).
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