Motocross Bikes
2003Suzuki RM 125
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The 2003 Suzuki RM 125 is a lightweight motocross bike designed for junior riders and beginners entering competitive off-road racing. Known for its responsive single-cylinder two-stroke engine and nimble handling, it delivers excellent maneuverability and quick acceleration in technical terrain. The liquid-cooled power plant provides reliable performance while maintaining the low seat height and compact dimensions ideal for developing young riders.
- Capacity
- 124.0 ccm
- Engine
- Single, two-stroke
- Gearbox
- 6-speed
- Dry weight
- 87.0 kg
- Seat height
- 940 mm
- Power
- 15.0 HP (11.0 kW)
What’s new for the 2003 Suzuki RM 125
vs the 2002| Spec | 2002 | 2003 |
|---|---|---|
| Seat height | 965 mm (38.0 inches) | 940 mm (37.0 inches) |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built exclusively for motocross track riding and racing, not for street or general recreational use.
- Built for
- A raw, high-revving two-stroke racer that rewards aggressive riding, precise clutch and throttle control, and active body positioning on the track.
- Not ideal for
- This is not suitable for commuting, touring, passengers, or casual road riders since it is unregistered, uncomfortable at low speed, and lacks lights or road equipment.
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
- 0.1724 HP/kg (dry)
- Bore x stroke
- 54.0 x 54.5 mm
- Compression
- 8.9:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Ignition
- CDI
- Lubrication system
- Premix
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
Dimensions & weight
- Wheelbase
- 1450 mm
- Overall length
- 2145 mm
- Overall width
- 840 mm
- Overall height
- 1275 mm
- Seat height
- 940 mm
- Dry weight
- 87.0 kg
- Fuel capacity
- 8.00 litres
- Ground clearance
- 350 mm
Chassis & suspension
- Front suspension
- Telescopic, 22 compression and 20 rebound settings, 12.2 inches (310mm) of wheel travel
- Rear suspension
- Link-type, spring preload fully-adjustable, 4 high-speed, 16 low-speed compression settings, 19 rebound settings, 12.6 inches (320mm) of wheel travel
Brakes & wheels
- Front brakes
- Single disc
- Rear brakes
- Single disc
- Front tyre
- 80/100-21
- Rear tyre
- 100/90-19
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 | 125 cc | 124 cc | 124 cc | 124 cc | 124 cc |
| Dry weight | 87 kg | 87 kg | 87 kg | 87 kg | 87 kg |
| Seat height | 965 mm | 940 mm | 950 mm | 950 mm | 950 mm |
| Fuel capacity | 8 L | 8 L | 8 L | 8 L | 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 Suzuki RM 125?
The 2003 Suzuki RM 125 has a Capacity of 124.0 ccm (7.57 cubic inches).
What engine power does the Suzuki RM 125 have?
The 2003 Suzuki RM 125 has a Power of 15.0 HP (11.0 kW).
How many gears does the Suzuki RM 125 have?
The 2003 Suzuki RM 125 has a Gearbox of 6-speed.
How much does the Suzuki RM 125 weigh?
The 2003 Suzuki RM 125 has a Dry weight of 87.0 kg (191.8 pounds).
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