Motocross Bikes
2027Suzuki RM-Z450
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The 2027 Suzuki RM-Z450 is a 449cc four-stroke motocrosser for intermediate to advanced racers who value stable, predictable handling. For 2027 it switches to KYB suspension and gets a new silencer, rims and tyres, keeping its 5-speed gearbox, 960mm seat and 6.3-litre tank.
- 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)
What’s new for the 2027 Suzuki RM-Z450
vs the 2026| Spec | 2026 | 2027 |
|---|---|---|
| Front suspension | Inverted telescopic, coil spring, oil damped, adjustable damping force | KYB inverted telescopic, coil spring, adjustable |
| Rear suspension | BFRC-link type, coil spring, oil damped, adjustable spring preload and damping force | KYB link-type, coil spring, adjustable |
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 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?
Worked out in your browser - nothing is sent to usReliability & safety
Bike Reliability score, safety recalls and owner complaintsBike Reliability
How the score works →44
out of 100Average
The Suzuki RM-Z450 passed its annual roadworthiness test first time 83.4% of the time, 0.9 points below expected for bikes of the same age and mileage. That beats 44% of models.
This covers every year of the model.
83.4%Passed first time
8.5%Failed outright
8.1%Fixed during test
0Typical miles
471Tests
Against its rivals · ranks 3 of 6
| # | Model (all years) | Score | Tests |
|---|---|---|---|
| 1 | Honda CRF250R | 62 Good | 722 |
| 2 | KTM 450 SX-F | 45 Average | 314 |
| 3 | Suzuki RM-Z450 | 44 Average | 471 |
| 4 | KTM 250 SX-F | 36 Below average | 266 |
| 5 | Honda CRF250F | 32 Below average | 900 |
| 6 | Honda CRF450R | 31 Below average | 2,056 |
Rivals are the most-viewed bikes on MotorcycleDB in the same category and engine size, from within three years of this model.
From British annual roadworthiness tests, 2005-2025. Contains public sector information licensed under the Open Government Licence v3.0 (DVSA MOT test data, Great Britain). How Bike Reliability works.
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
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet, multi-plate
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
- KYB inverted telescopic, coil spring, adjustable
- Rear suspension
- KYB link-type, coil spring, adjustable
- 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
Specs last verified against published sources: .
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 | 2027 |
|---|---|---|---|---|---|
| Capacity | 449 cc | 449 cc | 449 cc | 449 cc | 449 cc |
| Dry weight | 101 kg | 102 kg | 102 kg | 102 kg | 102 kg |
| Seat height | 995 mm | 955 mm | 955 mm | 960 mm | 960 mm |
| Fuel capacity | 7 L | 6.2 L | 6.2 L | 6.3 L | 6.3 L |
| Bike Reliability ⓘ | Too few tests | Too few tests | Too few tests | Too few tests | Too new |
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 2027 Suzuki RM-Z450 has a Capacity of 449.0 ccm (27.40 cubic inches).
What engine power does the Suzuki RM-Z450 have?
The 2027 Suzuki RM-Z450 has a Power of 56.0 HP (41.2 kW).
How many gears does the Suzuki RM-Z450 have?
The 2027 Suzuki RM-Z450 has a Gearbox of 5-speed.
How much does the Suzuki RM-Z450 weigh?
The 2027 Suzuki RM-Z450 has a Dry weight of 101.5 kg (223.8 pounds).
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