Motocross Bikes

2005Suzuki RM 125

29 fields on record

The 2005 Suzuki RM 125 is a competitive motocross machine designed for intermediate to advanced riders seeking aggressive performance in off-road racing. Powered by a liquid-cooled two-stroke engine with fully adjustable suspension on both ends, it delivers responsive handling and precise control. The RM 125 is best known for its reliability and balanced power delivery in the 125cc motocross class.

Capacity: 124.0 ccm
Engine: Single, two-stroke
Gearbox: 6-speed
Dry weight: 87.0 kg
Seat height: 950 mm
Power: 15.0 HP (11.0 kW)

⇄ Compare with another bike All model years

What’s new for the 2005 Suzuki RM 125

vs the 2004

Spec	2004	2005
Seat height	940 mm (37.0 inches)	950 mm (37.4 inches)
Compression	8.9:1	8.7:1

Other years 2002 2003 2004 2005 2006 2007

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail97%

Cornering90%

City riding5%

Daily riding5%

Touring5%

Two-up0%

Track85%

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 us

Your height

Inseam (optional)

Units

At 950mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2005 Suzuki RM 125, with a cramped knee angle of around 85 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at over 900 mm — Sky High →

Find bikes that fit your height →

Full specifications

Engine

Capacity: 124.0 ccm
Power: 15.0 HP (11.0 kW)
Engine type: Single, two-stroke
Power/weight ratio: 0.1724 HP/kg
Bore x stroke: 54.0 x 54.5 mm
Compression: 8.7:1
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: 950 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: 80/90-M21
Rear tyre: 110/90-M19

Other

Color options: Yellow

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	124.80 ccm (7.62 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	87.0 kg (191.8 pounds)	87.0 kg (191.8 pounds)	87.0 kg (191.8 pounds)	87.0 kg (191.8 pounds)	87.0 kg (191.8 pounds)
Seat height	965 mm (38.0 inches)	940 mm (37.0 inches)	950 mm (37.4 inches)	950 mm (37.4 inches)	950 mm (37.4 inches)
Fuel capacity	8.00 litres (2.11 gallons)	8.00 litres (2.11 gallons)	8.00 litres (2.11 gallons)	8.00 litres (2.11 gallons)	8.00 litres (2.11 gallons)
Color options	—	—	Yellow	Yellow	Yellow