2027 Suzuki RM-Z250 / RM-Z450
The RM-Z250 and RM-Z450 are pure motocross machines built on Suzuki's championship-winning racing heritage, and they're thrilling to ride hard.
Model shown: Suzuki RM-Z450 in Champion Yellow No. 2, $9,699 MSRP
Starting at $8,499 MSRP
Two versions of the RM-Z
Deciding between the RM-Z250 and RM-Z450? Compare them
MSRP is the manufacturer’s suggested retail price. It does not include freight, setup, the $85 doc fee, taxes or registration; each bike in stock shows its total price.
The RM-Z250 / RM-Z450 for sale
See all RM-Z250 / RM-Z450 inventory
Total price includes freight, setup and the $85 doc fee on new bikes, and the $85 doc fee on pre-owned bikes. How our prices work
Key figures
- Engine
- 449cc
- Seat height
- 37.8 in
- Curb weight
- 247 lb
Figures for the 2027 RM-Z450.
Our take on the RM-Z250 / RM-Z450
Both are famous for the way they turn, with sharp, nimble handling that lets you slice the bike exactly where you want it in a rutted corner.
For 2027 both bikes get a new AMA and FIM compliant exhaust silencer and new RK Excel wheel rims.
Tuning is part of the fun. Suzuki's MX-Tuner 4.0 adjusts fuel injection and ignition from a smartphone, and the included fuel couplers change the engine map in seconds. Suzuki Holeshot Assist Control helps you launch hard off the gate, and the traction management system fine-tunes engine output for the conditions. The slim seat and bodywork make it easy to move around on the bike lap after lap, and moto after moto.
What the reviewers say
“Similar to how we felt on the 250, Colby also feels like he can put the 450 wherever he wants, and it turns in when and where he wants it to.”
Ultimate MotorcyclingWill Embree, November 2022Read the review on Ultimate Motorcycling (opens in a new tab) “In smooth conditions, the RM-Z slices up the track on inside or outside lines, and lean-in on corner entry is as good as they come.”
Cycle NewsRyan Nitzen, October 2022Read the review on Cycle News (opens in a new tab)
Which RM-Z is right for you?
Two versions.
2027 model year
RM-Z RM-Z250
$8,499 MSRP
For motocross in the 250 class, with a 249cc single and a curb weight of 233 lb.
- Seat height
- 37.5 in
- Suspension
- KYB, adjustable
- Wheels
- 21 in front, 19 in rear
- Comes with
- Fuel injection, adjustable suspension
- Champion Yellow No. 2
2027 model year
RM-Z RM-Z450
$9,699 MSRP
For the 450 class, with a 449cc single and a curb weight of 247 lb.
- Seat height
- 37.8 in
- Suspension
- KYB, adjustable
- Wheels
- 21 in front, 19 in rear
- Comes with
- Fuel injection, adjustable suspension
- Champion Yellow No. 2
MSRP is the manufacturer’s suggested retail price. It does not include freight, setup, the $85 doc fee, taxes or registration; each bike in stock shows its total price. The full RM-Z story at Suzuki (opens in a new tab)
New for 2027
KYB fork
The Showa fork gives way to a KYB coil-spring fork with full damping adjustment and 12.2 inches of travel, tuned for a more compliant, controllable feel.
KYB shock
A new fully adjustable KYB shock, still linkage-assisted with 11.8 inches of travel, replaces the Showa BFRC unit for plusher bump absorption and better rear traction.
New upper triple clamp
A new, lighter upper fork bracket was developed to work with the KYB fork and the handlebar setup for better chassis feel.
Everything new
RK Excel rims
Lighter, strong RK Excel rims improve chassis compliance and the feedback you get through the bike.
Slimmer subframe
A narrower subframe carries the new muffler and slims the rear of the bike.
Better-breathing airbox
A reshaped air cleaner outlet tube feeds the throttle body more efficiently for crisper throttle response across the rev range.
New silencer
A multi-layer muffler meets the 2026 AMA and FIM sound limits, and Suzuki says it does so without giving up engine performance.
Specifications
Shown for the 2027 RM-Z450.
Engine and transmission
- Engine
- 449cc, 4-stroke, liquid-cooled, single cylinder, DOHC
- Bore x stroke
- 3.78 x 2.40 in
- Compression
- 12.5:1
- Fuel system
- Fuel injection, 44mm throttle body
- Starter
- Primary kickstarter with automatic decompressor
- Lubrication
- Semi-dry sump
- Ignition
- Electronic ignition (CDI)
- Spark plug
- NGK DIMR8C10
- Clutch
- Wet multi-plate
- Transmission
- 5-speed constant mesh
- Final drive
- Chain, DID 520DMA2K, 114 links
All specifications
Chassis
- Front suspension
- Inverted telescopic, coil spring, oil damped, adjustable damping force
- Rear suspension
- Link type, coil spring, oil damped, adjustable spring preload, and damping force
- Front brakes
- Disc brake, single rotor
- Rear brakes
- Disc brake, single rotor
- Front tire
- 80/100-21 M/C (51M), tube type
- Rear tire
- 110/90-19 M/C (62M), tube type
Dimensions and capacities
- Length
- 85.6 in
- Width
- 32.9 in
- Height
- 49.6 in
- Wheelbase
- 58.3 in
- Ground clearance
- 13.0 in
- Seat height
- 37.8 in
- Curb weight
- 247 lb
- Fuel tank
- 1.7 gal
Warranty and service
- Factory warranty
- Not applicable
What comes standard
- Suzuki Holeshot Assist Control (S-HAC)
- Suzuki MX-Tuner 4.0 smartphone tuning app
2027 RM-Z450, from Suzuki’s U.S. site (opens in a new tab) as of October 11, 2026, in US units. Specifications are the manufacturer’s and may change.
Ride it, own it, keep it running
Why buy it from SCM
We ride, so we understand
Ortega Highway, Angeles Crest, the track and the commute. Ask us about the bike, the gear or the route, and you get an answer from someone who has been there. Meet the team
Pickup or delivery
Pick it up here, set up and test ridden by our techs. Need it delivered? Ask us about delivery options. How it works
Questions riders ask
RM-Z250 or RM-Z450?
Both share a twin-spar aluminum frame, KYB suspension and the same tuning tools. The RM-Z250 has a 249cc engine with dual fuel injectors and weighs 233 pounds at the curb. The RM-Z450 steps up to the 449cc engine and weighs 247 pounds.
What's the seat height?
Suzuki lists 37.5 inches for the RM-Z250 and 37.8 inches for the RM-Z450. Both have 13.0 inches of ground clearance, a five-speed gearbox and a 6.3-liter fuel tank.
How do I tune the engine?
Connect one of the included fuel couplers to switch fuel settings in seconds, or use Suzuki's MX-Tuner 4.0 smartphone app to adjust fuel injection and ignition. Suzuki Holeshot Assist Control is a selectable launch system for starts.
Compare two RM-Z versions
RM-Z250 and RM-Z450 compared
Choose the RM-Z450 if you race the 450 class, or you're an experienced rider who wants big torque out of every corner.
Choose the RM-Z250 if you race the 250 class or you're stepping up from a smaller bike. It's lighter, it loves to rev, and it rewards riders who keep it in the meat of the power, for $1,200 less.
More on these two
Which one fits your riding
The RM-Z250: The RM-Z250 is where a lot of motocross racers cut their teeth. Reviewers say it slices up the track on inside or outside lines, and it turns in exactly where you want it.
The RM-Z450: The RM-Z450 is the big bore. It has the same sharp handling Suzuki's known for, with the torque to drive hard out of corners and up hills. It's the one for open-class racing and riders with the skill to use it.
What the RM-Z450 adds
Everything in the RM-Z250, plus:
- The 449cc single in place of 249cc
- A wider 110/90-19 rear tire
The RM-Z450 against the RM-Z250
- +$1,200 MSRP
- +200cc
- Different suspension
6 differences, shown first. Tap an underlined value for the full wording.
- MSRP
- RM-Z250: $8,499
- RM-Z450: $9,699
- Engine
- RM-Z250:
249cc single
249cc, 4-stroke, liquid-cooled, single cylinder, DOHC
- RM-Z450:
449cc single
449cc, 4-stroke, liquid-cooled, single cylinder, DOHC
- Rear suspension
- RM-Z250:
Single unit
Single unit, link type, coil spring, oil damped, adjustable spring preload and damping force
- RM-Z450:
adjustable spring preload
Link type, coil spring, oil damped, adjustable spring preload, and damping force
- Tires
- RM-Z250:
100/90-19 M/C
80/100-21 M/C (51M), tube type front, 100/90-19 M/C (57M), tube type rear
- RM-Z450:
110/90-19 M/C
80/100-21 M/C (51M), tube type front, 110/90-19 M/C (62M), tube type rear
- Weight
- RM-Z250: 233 lb curb
- RM-Z450: 247 lb curb
- Seat height
- RM-Z250: 37.5 in
- RM-Z450: 37.8 in
- Front suspension same on both
- RM-Z250:
Inverted telescopic
Inverted telescopic, coil spring, oil damped, adjustable damping force
- RM-Z450:
Inverted telescopic
Inverted telescopic, coil spring, oil damped, adjustable damping force
- Front brakes same on both
- RM-Z250: Disc brake, single rotor
- RM-Z450: Disc brake, single rotor
- Fuel tank same on both
- RM-Z250: 1.66 gal
- RM-Z450: 1.7 gal
- Ground clearance same on both
- RM-Z250: 13 in
- RM-Z450: 13 in
- Gearbox same on both
- RM-Z250: 5-speed constant mesh
- RM-Z450: 5-speed constant mesh
- Model year same on both
- RM-Z250: 2027
- RM-Z450: 2027
- Colors same on both
- RM-Z250: Champion Yellow No. 2
- RM-Z450: Champion Yellow No. 2
From Suzuki’s US pages, read October 13, 2026. “Not listed” means the maker’s US page doesn’t say. MSRP leaves out freight, setup, the $85 doc fee, taxes and registration.
More Suzuki models
Come see the RM-Z250 / RM-Z450
MSRP is the manufacturer’s suggested retail price. It does not include freight, setup, the $85 doc fee, taxes or registration; each bike in stock shows its total price. How our prices work
Tax, license, registration, government fees, any finance charges and any electronic filing fee are extra.