Suzuki Rm-z 450
The Suzuki RM-Z450 was introduced in 2005 as Suzuki's first four-stroke 450cc motocrosser, replacing the two-stroke RM250 in competitive relevance and featuring a revolutionary fuel-injected engine in later iterations. A significant redesign came in 2008 with improved chassis geometry, and fuel injection was introduced in 2013, making it one of the earlier motocross bikes to adopt EFI technology. It has been a staple in AMA Supercross and Motocross competition, ridden by factory Suzuki riders and known for its strong low-to-mid range power delivery.
~56 hp
Power
~51 Nm
Torque
110 kg
Weight
~145 km/h (estimated; dependent on gearing and terrain)
Top Speed
~5.5 L/100km (estimated; highly variable under race/off-road conditions)
Fuel
Naked
Body
What Buyers Should Know
Watch the Valves
The RMZ 450 is known for tight valve clearances that require frequent inspection, especially after hard riding. Neglecting valve checks can lead to costly engine damage, so always verify service history before buying used.
Strong Resale Value
The RMZ 450 holds its value well compared to many competitors, particularly the 2018+ models with the updated fuel injection system. A well-maintained example typically retains 60-70% of its value after two years.
Fuel Injection Advantage
Starting with the 2018 model, Suzuki added fuel injection, making cold starts effortless and eliminating carburetor jetting headaches. This upgrade significantly improved reliability and reduced maintenance demands for everyday riders.
Full Specifications
Rivals & Alternatives
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