Motocross Bikes
2011Suzuki RM-Z450
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The 2011 Suzuki RM-Z450 is a competition-focused motocross machine built for serious amateur and professional riders. Powered by a liquid-cooled 449cc four-stroke engine with fuel injection, it delivers strong mid-range power and reliable performance on the track. Known for its lightweight aluminum frame and responsive handling, the RM-Z450 excels in high-speed cornering and acceleration.
- Capacity
- 449.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Dry weight
- 101.5 kg
- Seat height
- 955 mm
- Power
- 56.0 HP (41.2 kW)
What’s new for the 2011 Suzuki RM-Z450
vs the 2009| Spec | 2009 | 2011 |
|---|---|---|
| Engine capacity | 652.0 ccm (39.79 cubic inches) | 449.0 ccm (27.40 cubic inches) |
| Power | 58.0 HP (42.7 kW) | 56.0 HP (41.2 kW) |
| Wet weight | 112.0 kg (246.9 pounds) | 113.0 kg (249.1 pounds) |
| Front suspension | Telescopic, coil spring, oil damped | Telescopic inverted, coil spring, oil damped |
| Rear suspension | Link type, coil spring, oil damped | Swingarm, link type, coil spring, oil damped |
| Wheelbase | 1480 mm (58.3 inches) | 1495 mm (58.9 inches) |
| Compression | 12.2:1 | 12.4:1 |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely for motocross track and off-road competition, not for street or commuting use.
- Built for
- A raw, high-revving, single-cylinder motocross machine that rewards aggressive riding with sharp handling and explosive acceleration out of corners.
- Not ideal for
- Not suitable for beginners, passengers, daily road commuting, or anyone seeking comfort or long-distance 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
- 449.0 ccm
- Power
- 56.0 HP (41.2 kW)
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.5517 HP/kg
- Bore x stroke
- 96.0 x 62.1 mm
- Compression
- 12.4:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Kick
- Ignition
- Electronic
- Valves per cylinder
- 4
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet, multi-plate rack-and-pinion clutch
Dimensions & weight
- Wheelbase
- 1495 mm
- Overall length
- 2190 mm
- Overall width
- 830 mm
- Overall height
- 1270 mm
- Seat height
- 955 mm
- Dry weight
- 101.5 kg
- Wet weight
- 113.0 kg
- Fuel capacity
- 6.20 litres
- Ground clearance
- 325 mm
Chassis & suspension
- Frame
- Twin-spar aluminum frame and swingarm.
- Front suspension
- Telescopic inverted, coil spring, oil damped
- Rear suspension
- Swingarm, link type, coil spring, oil damped
- Front wheel travel
- 310 mm
- Rear wheel travel
- 310 mm
- Rake (fork angle)
- 29.8°
- Trail
- 130 mm
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 270 mm
- Rear brakes
- Single disc
- Front tyre
- 80/100-21
- Rear tyre
- 110/90-19
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 | 2008 | 2011 | 2013 | 2017 | 2021 | 2025 |
|---|---|---|---|---|---|---|
| Capacity | 449 cc | 449 cc | 449 cc | 449 cc | 449 cc | 449 cc |
| Dry weight | 102 kg | 102 kg | 102 kg | 102 kg | 102 kg | 102 kg |
| Seat height | 955 mm | 955 mm | 955 mm | 955 mm | 960 mm | 960 mm |
| Fuel capacity | 6.2 L | 6.2 L | 6.2 L | 6.2 L | 6.3 L | 6.3 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-Z450?
The 2011 Suzuki RM-Z450 has a Capacity of 449.0 ccm (27.40 cubic inches).
What engine power does the Suzuki RM-Z450 have?
The 2011 Suzuki RM-Z450 has a Power of 56.0 HP (41.2 kW).
How many gears does the Suzuki RM-Z450 have?
The 2011 Suzuki RM-Z450 has a Gearbox of 5-speed.
How much does the Suzuki RM-Z450 weigh?
The 2011 Suzuki RM-Z450 has a Dry weight of 101.5 kg (223.8 pounds).
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