2026Suzuki RM-Z450

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The 2026 Suzuki RM-Z450 is a competitive 450cc motocross bike engineered for intermediate to advanced off-road racers seeking responsive performance and reliability. Its liquid-cooled four-stroke single-cylinder engine delivers consistent power delivery across varied terrain, while advanced features like electronic fuel injection and DOHC technology provide the precision needed for both track competition and aggressive trail riding. Known for its balance of power, handling, and durability, the RM-Z450 remains a formidable choice in the modern motocross class.

Capacity: 449.0 ccm
Engine: Single, four-stroke
Gearbox: 5-speed
Dry weight: 101.5 kg
Seat height: 960 mm
Power: 56.0 HP (41.2 kW)

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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

Off-road & trail97%

Cornering90%

City riding5%

Daily riding8%

Touring5%

Two-up2%

Track85%

Best for: Built purely for motocross racing and off-road competition, not for general transportation.
Built for: A raw, lightweight, high-performance dirt weapon that rewards aggressive riding and precise inputs.
Not ideal for: This is not suitable for commuting, touring, carrying a passenger, or riders seeking comfort and road-going practicality.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 960mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2026 Suzuki RM-Z450, 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 →

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Full specifications

Engine

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: 12.5:1
Cooling system: Liquid
Fuel system: Injection
Starting: Kick
Ignition: CDI
Valves per cylinder: 4
Lubrication system: Semi-dry sump
Spark plugs: NGK DIMR8C10

Transmission

Gearbox: 5-speed
Transmission type: Manual
Final drive: Chain
Clutch: Wet, multi-plate
Chain size: 520

Dimensions & weight

Wheelbase: 1480 mm
Overall length: 2175 mm
Overall width: 835 mm
Overall height: 1260 mm
Seat height: 960 mm
Dry weight: 101.5 kg
Wet weight: 112.0 kg
Fuel capacity: 6.30 litres
Ground clearance: 330 mm

Chassis & suspension

Frame: Aluminum alloy, twin-spar
Front suspension: Inverted telescopic, coil spring, oil damped, adjustable damping force
Rear suspension: BFRC-link type, coil spring, oil damped, adjustable spring preload and damping force
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: Champion 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	2011	2016	2022	2026	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	960 mm	960 mm	960 mm
Fuel capacity	7 L	6.2 L	6.2 L	6.3 L	6.3 L	6.3 L