Suzuki RM-Z450 - 2025 Specifications and Reviews

The 2025 Suzuki RM-Z450 is a competitive motocross machine designed for intermediate to advanced riders seeking reliability and performance on the track. Powered by a liquid-cooled 449cc four-stroke single-cylinder engine with fuel injection, it delivers consistent power and precise throttle response. Known for its proven engineering and agile handling, the RM-Z450 remains a formidable choice in the 450cc motocross class.

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General information

Color OptionsChampion Yellow
PriceUS$ 9299. MSRP depends on country, taxes, accessories, etc.
CategoryCross / motocross
ModelSuzuki RM-Z450

Engine and Transmission Specifications

StartingKick
ClutchWet, multi-plate
Final DriveChain (final drive)
Gearbox5-speed
Cooling SystemLiquid
IgnitionCDI
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
InductionInjection. 44mm throttle body
Valves Per Cylinder4
Bore x Stroke96.0 x 62.1 mm (3.8 x 2.4 inches)
Compression Ratio12.5:1
Engine DetailsAluminum cylinder with Suzuki Composite Electrochemical Material (SCEM) coating
Engine TypeSingle cylinder, four-stroke
Capacity:449.0 ccm (27.40 cubic inches)

Physical measures and capacities

Fuel Capacity6.30 litres (1.66 US gallons)
Wheelbase1480 mm (58.3 inches)
Ground Clearance330 mm (13.0 inches)
Overall Width835 mm (32.9 inches)
Overall Length2175 mm (85.6 inches)
Overall Height1260 mm (49.6 inches)
Seat Height960 mm (37.8 inches) If adjustable, lowest setting.
Wet Weight112.0 kg (246.9 pounds)
 
 

Suzuki RM-Z450 dimensions and frame

WheelsBlack anodized rims with a cross-section. Bridgestone X30 tires.
Rear BrakesSingle disc
Brake Disc Diameter270 mm (10.6 inches)
Front BrakesSingle disc
Rear Tyre110/90-19
Front Tyre80/100-21
Rear SuspensionBFRC-link type, coil spring, oil damped, adjustable spring preload and damping force
Front SuspensionInverted telescopic, coil spring, oil damped, adjustable damping force
FrameAluminum alloy, twin-spar

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Chain links114
Chain size520
Spark plugsNGK DIMR8C10
Update specsReport missing specs or required updates.
WarrantyNo warranty
DrivelineDID 520DMA2K, 114 links
Lubrication systemSemi-dry sump
Year of manufacture2025

Performance Profile & Rider Fit

Best For

Track85%
City5%
Cornering88%
Daily Riding10%
Touring5%
Passenger0%

Rider Profile

Best ForThis bike suits experienced off-road and motocross riders comfortable with a tall seat height, aggressive power delivery, and no electric start.
PurposeBuilt purely for motocross track and off-road competition, not for street or commuting use.
Rider FitDemands strong physical fitness, core strength, and good bike control due to its tall stance, firm suspension, and kick-start operation.
CharacterA raw, high-revving, single-cylinder motocross machine that rewards aggressive riding with sharp handling and explosive acceleration out of corners.
Not Ideal ForNot suitable for beginners, passengers, daily road commuting, or anyone seeking comfort or long-distance touring capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2025 Suzuki RM-Z450 Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 960mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2025 Suzuki RM-Z450, with a cramped knee angle of around 85 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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