Motocross Bikes
2008Suzuki RM-Z450
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The 2008 Suzuki RM-Z450 is a competitive motocross bike engineered for intermediate to advanced riders seeking race-ready performance. Its fuel-injected 449cc liquid-cooled engine delivers responsive power across the RPM range, while the responsive handling and aggressive geometry make it ideal for both track and off-road competition. Known for excellent mid-range torque and reliability, it remains a formidable choice in the open 450 class.
- 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 2008 Suzuki RM-Z450
vs the 2007| Spec | 2007 | 2008 |
|---|---|---|
| Dry weight | 100.0 kg (220.5 pounds) | 101.5 kg (223.8 pounds) |
| Fuel capacity | 7.00 litres (1.85 US gallons) | 6.20 litres (1.64 US gallons) |
| Gearbox | 4-speed | 5-speed |
| Front suspension | Telescopic, cartridge-type, 22 compression and 20 rebound settings, 12.2 inches of wheel travel | Telescopic, cartridge-type fully adjustable rebound, compression and pre-load settings |
| Rear suspension | Link-type, spring preload fully-adjustable, 16 compression and 19 rebound settings, 12.2 inches of wheel travel | Link-type, spring preload fullyadjustable rebound, compression and pre-load settings |
| Compression | 11.9:1 | 12.2:1 |
Other years
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
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 (dry)
- Bore x stroke
- 96.0 x 62.1 mm
- Compression
- 12.2:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Kick
- Ignition
- CDI
- Valves per cylinder
- 4
- Lubrication system
- Semi-dry sump
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet, multi-plate rack-and-pinion clutch
Dimensions & weight
- Wheelbase
- 1480 mm
- Overall length
- 2185 mm
- Overall width
- 830 mm
- Overall height
- 1260 mm
- Seat height
- 955 mm
- Dry weight
- 101.5 kg
- Wet weight
- 123.5 kg
- Fuel capacity
- 6.20 litres
- Ground clearance
- 350 mm
Chassis & suspension
- Frame
- Twin-spar aluminum frame and swingarm.
- Front suspension
- Telescopic, cartridge-type fully adjustable rebound, compression and pre-load settings
- Rear suspension
- Link-type, spring preload fullyadjustable rebound, compression and pre-load settings
- 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
- 90/90-21
- Rear tyre
- 120/90-19
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 | 2005 | 2008 | 2011 | 2016 | 2022 | 2027 |
|---|---|---|---|---|---|---|
| Capacity | 449 cc | 449 cc | 449 cc | 449 cc | 449 cc | 449 cc |
| Dry weight | 101 kg | 102 kg | 102 kg | 102 kg | 102 kg | 102 kg |
| Seat height | 995 mm | 955 mm | 955 mm | 955 mm | 960 mm | 960 mm |
| Fuel capacity | 7 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 2008 Suzuki RM-Z450 has a Capacity of 449.0 ccm (27.40 cubic inches).
What engine power does the Suzuki RM-Z450 have?
The 2008 Suzuki RM-Z450 has a Power of 56.0 HP (41.2 kW).
How many gears does the Suzuki RM-Z450 have?
The 2008 Suzuki RM-Z450 has a Gearbox of 5-speed.
How much does the Suzuki RM-Z450 weigh?
The 2008 Suzuki RM-Z450 has a Dry weight of 101.5 kg (223.8 pounds).
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