Suzuki RM-Z450 - 2020 Specifications and Reviews

The 2020 Suzuki RM-Z450 is a competitive 450cc motocross bike designed for intermediate to advanced riders seeking proven performance on the track. Known for its reliable traction management system and lightweight construction at 112kg, it delivers nimble handling and responsive power delivery. Championship Yellow aesthetics match its race-oriented character, making it a solid choice for serious weekend warriors and competitive riders.

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General information

CategoryCross / motocross
Year2020
ModelSuzuki RM-Z450

Engine and Transmission Specifications

DrivelineChain, DID520MXV4, 114 links
ClutchWet, multi-plate rack-and-pinion clutch
Transmission typeChain   (final drive)
Gearbox5-speed
Cooling systemLiquid
Lubrication systemSemi-dry sump
IgnitionElectronic ignition
Fuel controlDouble Overhead Cams/Twin Cam (DOHC)
Fuel systemInjection
Valves per Cylinder4
Bore x Stroke96.0 x 62.1 mm (3.8 x 2.4 inches)
Compression12.5:1
Engine detailsAluminum cylinder with Suzuki Composite Electrochemical Material (SCEM) coating
Engine typeSingle cylinder, four-stroke
Capacity:449.0 ccm (27.40 cubic inches)
 
 

Brakes, suspension, Frame and wheels

WheelsBlack anodized rims with a cross-section. Bridgestone X30 tires.
Rear brakesSingle disc
Diameter270 mm (10.6 inches)
Front brakesSingle disc
Rear tire110/90-19
Front tire80/100-21
Rear wheel travel310 mm (12.2 inches)
Rear SuspensionShowa BFRC - link type, coil spring, oil damped, adjustable spring preload and damping force
Front SuspensionShowa inverted telescopic, coil spring, oil damped, adjustable damping force
Frame typeAluminum alloy, twin-spar

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.
Weight incl. oil, gas, etc112.0 kg (246.9 pounds)
 
 

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
CommentsTraction management system
Factory warrantyNo warranty
StarterKick
Color optionsChampionship Yellow

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

2020 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 2020 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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Rider Reviews

Total comments: 1
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MotorcycleDB Review

The 2020 Suzuki RM-Z450 is a high-performance motocross bike that offers a winning combination of power, agility, and durability. With its fuel-injected, 449cc engine, this bike is designed to deliver maximum performance on the track. The RM-Z450 also features a lightweight frame and advanced suspension system for exceptional handling and control. Whether you're hitting the jumps or navigating through tight corners, this bike is built to handle the demands of competitive motocross racing. With its sleek design and cutting-edge technology, the 2020 Suzuki RM-Z450 is sure to impress riders of all skill levels. Overall, the 2020 Suzuki RM-Z450 is a top-of-the-line motocross bike that is sure to satisfy the needs of competitive riders. Its powerful engine and advanced suspension system make it a force to be reckoned with on the track. With its high-performance capabilities and durable construction, the RM-Z450 is an ideal choice for motocross enthusiasts who are looking for a bike that can handle the rigors of intense racing. Whether you're a seasoned pro or a beginner looking to step up your game, the 2020 Suzuki RM-Z450 is a bike that is worth considering for your next motocross adventure.
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